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Alveoli: Gas Exchange
 
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Revision notes and practice question for gas exchange: https://www.tes.com/teaching-resource/gas-exchange-11804216 Follow me on Instagram: https://www.instagram.com/sciencesauce_online/ Twitter: https://twitter.com/science_sauce Facebook: https://facebook.com/sciencesauceonline/ The alveoli ("many alveoli", "one alveolus") are the sites of gas exchange in the lungs. They are tiny air sacks sometimes described as being cauliflower-shaped. Oxygen diffuses across the lining of the alveoli and blood capillaries into and into red blood cells. Carbon dioxide diffuses from the blood to the alveoli. A concentration gradient is maintained by breathing as well as blood flow. The main adaptation of the gas exchange surface are: 1. Large surface area 2. Thin wall 3. Moist lining 4. Good blood supply 5. Good ventilation
Views: 224514 Science Sauce
Gas exchange
 
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Why do our bodies need to exchange oxygen and carbon dioxide with the air, and how do they do it? This video is part of our Body Systems unit. You can find out more about Stile at https://stileeducation.com/ or check out the unit here: https://stileapp.com/au/library/publishers/cosmos-magazine/compilations/cosmos-lessons/5791d5d0-d006-4efb-8974-9294b6b56048
Views: 42326 Stile Education
Gas Exchange Physiology Animation - MADE EASY
 
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Gas Exchange Physiology Animation ✔✔✔FOR MORE MEDICAL VIDEOS VISIT: http://freemedicalvideos.com/ Website: http://www.medical-institution.com/ Facebook: http://www.facebook.com/Medicalinstit... Twitter: https://twitter.com/USMLE_HighYield This information is intended for educational purposes only, and should not be interpreted as medical advice. Please consult your physician for advice about changes that may affect your health. This Animation video teaches you the basic concept of Gas Exchange Physiology in the respiratory system. What is gas exchange How does gas exchange work Why is gas exchange important Oxygen exchange Respiratory system
Views: 595210 Medical Institution
Oxygen movement from alveoli to capillaries | NCLEX-RN | Khan Academy
 
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Watch as a molecule of oxygen makes its way from the alveoli (gas layer) through various liquid layers in order to end up in the blood. Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Rishi Desai. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-respiratory-system/rn-the-respiratory-system/v/the-respiratory-center?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-respiratory-system/rn-the-respiratory-system/v/fick-s-law-of-diffusion?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/licenses/by-nc-sa/3.0/us/). About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channel/UCDx5cTeADCvKWgF9x_Qjz3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 367609 khanacademymedicine
Respiration Gas Exchange
 
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Views: 558210 Armando Hasudungan
Gaseous exchange between alveoli and capillaries
 
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A little more detail of the exchange of oxygen between alveoli and capillaries
Biology Help: The Respiratory System - Gas Exchange In The Alveoli Explained In 2 Minutes!!
 
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Check out the following links below! Over 1000+ Medical Questions: http://www.5minuteschool.com DONATE + SUPPORT US: http://paypal.me/5minuteschool Patreon: https://goo.gl/w841fz Follow us on Twitter: http://twitter.com/5MinuteSchool Follow us on Instagram: http://instagram.com/5minuteschool My personal Instagram: http://instagram.com/shaz.s11 Contact us: [email protected]
Views: 64500 5MinuteSchool
Alveolar Structure and Gas Exchange
 
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Donate here: http://www.aklectures.com/donate.php Website video link: http://www.aklectures.com/lecture/alveolar-structure-and-gas-exchange Facebook link: https://www.facebook.com/aklectures Website link: http://www.aklectures.com
Views: 65749 AK LECTURES
Gas exchange in different animals | Biology for All | FuseSchool
 
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Respiration is carried out by all living things. Animals need oxygen to carry out aerobic respiration and they need to get rid of the waste product called carbon dioxide. This is called gas exchange. Swapping one gas for another. Animals have evolved different mechanisms for carrying out gaseous exchange. The most important thing is to create a large surface area, the bigger the surface area the faster diffusion of the gases can occur. Secondly they all have a good blood supply. You want to get oxygen into the blood and carbon dioxide out as quickly as possible so the blood travels very close to the exchange surface to once again maximise diffusion. SUBSCRIBE to the Fuse School YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. JOIN our platform at www.fuseschool.org This video is part of 'Chemistry for All' - a Chemistry Education project by our Charity Fuse Foundation - the organisation behind FuseSchool. These videos can be used in a flipped classroom model or as a revision aid. Find our other Chemistry videos here: https://www.youtube.com/playlist?list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the Fuse School platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: [email protected]
Alveoli and Gas Exchange Investigations - GCSE Biology (9-1)
 
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This video covers the following syllabus objectives from Edexcel IGCSE Biology 9-1 2.48 Explain how alveoli are adapted for gas exchange by diffusion between air in the lungs and blood in capillaries. 2.50 Practical: investigate breathing in humans, including the release of carbon dioxide and the effect of exercise. For a PowerPoint on this topic visit www.mrexham.com
Views: 665 MrExham
6.4.3 Features of alveoli that adapt them to gas exchange
 
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Alveoli are the site of gas exchange in the lungs and are specially adapted for the task. Here I emphasize the main ways in which they are specialized to allow for this function.
Views: 10216 Stephanie Castle
Gas Exchange System Respiratory
 
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gas exchange system repiratory Oxygen and carbon dioxide diffuse between the alveoli and pulmonary capillaries in the lungs, and between the systemic capillaries and cells throughtout the body. The diffusion of these gases, moving in opposite directions, is called gas exchange Other video about System Respiratory Control of Respiration System Respiratory http://www.youtube.com/watch?v=_lHOQyvWmnw Gas Transport System Respiratory http://www.youtube.com/watch?v=HsiwGWef2dU Pulmonary Ventilation System Respiratory http://www.youtube.com/watch?v=554DUkghvys Anatomy Respiratory System http://www.youtube.com/watch?v=567QZL5z69k Translated titles: Gasaustauschsystem respiratorisch गैस एक्सचेंज सिस्टम श्वसन Gas uitruilstelsel respiratoriese Gas exchange system respiratory 가스 교환 시스템 호흡기 Sistema de intercambio de gases respiratorio نظام صرف الغاز التنفسي গ্যাস বিনিময় ব্যবস্থা শ্বাসযন্ত্র ग्याँस एक्सचेंज प्रणाली श्वसन گیس ایکسچینج سسٹم تنفس
Views: 10178 Human Physiology
Respiratory System 4, Alveoli and gaseous exchange
 
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You can support the work of campbellteaching, at no cost whatsoever to yourself, if you use the link below as your bookmark to access Amazon. Thank you. If in the US use this link http://goo.gl/mDMfj5 If in the UK use this link http://goo.gl/j0htQ5
Views: 45481 Dr. John Campbell
Gas Exchange in Alveoli Animation - Pathway of Air through Respiratory System Video – How Lungs Work
 
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Air first enters the body through the mouth or nose, quickly moves to the pharynx (throat), passes through the larynx (voice box), enters the trachea, which branches into a left and right bronchus within the lungs and further divides into smaller and smaller branches called bronchioles. The smallest bronchioles end in tiny air sacs, called alveoli, which inflate during inhalation, and deflate during exhalation. Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli. The walls of the alveoli actually share a membrane with the capillaries in which oxygen and carbon dioxide move freely between the respiratory system and the bloodstream. Oxygen molecules attach to red blood cells, which travel back to the heart. At the same time, the carbon dioxide molecules in the alveoli are blown out of the body with the next exhalation. The primary function of the respiratory system is to exchange oxygen and carbon dioxide. Inhaled oxygen enters the lungs and reaches the alveoli. The layers of cells lining the alveoli and the surrounding capillaries are each only one cell thick and are in very close contact with each other. This barrier between air and blood averages about 1 micron (1/10,000 of a centimeter, or 0.000039 inch) in thickness. Oxygen passes quickly through this air-blood barrier into the blood in the capillaries. Similarly, carbon dioxide passes from the blood into the alveoli and is then exhaled. Oxygenated blood travels from the lungs through the pulmonary veins and into the left side of the heart, which pumps the blood to the rest of the body (see Biology of the Heart : Function of the Heart). Oxygen-deficient, carbon dioxide-rich blood returns to the right side of the heart through two large veins, the superior vena cava and the inferior vena cava. Then the blood is pumped through the pulmonary artery to the lungs, where it picks up oxygen and releases carbon dioxide. Gas Exchange Between Alveoli and Capillaries: To support the exchange of oxygen and carbon dioxide, about 5 to 8 liters (about 1.3 to 2.1 gallons) of air per minute are brought in and out of the lungs, and about three tenths of a liter of oxygen is transferred from the alveoli to the blood each minute, even when the person is at rest. At the same time, a similar volume of carbon dioxide moves from the blood to the alveoli and is exhaled. During exercise, it is possible to breathe in and out more than 100 liters (about 26 gallons) of air per minute and extract 3 liters (a little less than 1 gallon) of oxygen from this air per minute. The rate at which oxygen is used by the body is one measure of the rate of energy expended by the body. Breathing in and out is accomplished by respiratory muscles. Air is brought to the alveoli in small doses (called the tidal volume), by breathing in (inhalation) and out (exhalation) through the respiratory airways, a set of relatively narrow and moderately long tubes which start at the nose or mouth and end in the alveoli of the lungs in the chest. Air moves in and out through the same set of tubes, in which the flow is in one direction during inhalation, and in the opposite direction during exhalation. During each inhalation, at rest, approximately 500 ml of fresh air flows in through the nose. Its is warmed and moistened as it flows through the nose and pharynx. By the time it reaches the trachea the inhaled air's temperature is 37 °C and it is saturated with water vapor. On arrival in the alveoli it is diluted and thoroughly mixed with the approximately 2.5–3.0 liters of air that remained in the alveoli after the last exhalation. This relatively large volume of air that is semi-permanently present in the alveoli throughout the breathing cycle is known as the functional residual capacity (FRC). At the beginning of inhalation the airways are filled with unchanged alveolar air, left over from the last exhalation. This is the dead space volume, which is usually about 150 ml. It is the first air to re-enter the alveoli during inhalation. Only after the dead space air has returned to the alveoli does the remainder of the tidal volume (500 ml - 150 ml = 350 ml) enter the alveoli. The entry of such a small volume of fresh air with each inhalation, ensures that the composition of the FRC hardly changes during the breathing cycle.
Views: 32251 AniMed
Alveolar gas equation - part 1 | Respiratory system physiology | NCLEX-RN | Khan Academy
 
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Find out how to calculate exactly how much oxygen is deep down inside your lungs! Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Rishi Desai. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-respiratory-system/gas-exchange-pf/v/alveolar-gas-equation-part-2?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-respiratory-system/rn-the-respiratory-system/v/thermoregulation-in-the-lungs?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/licenses/by-nc-sa/3.0/us/). About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channel/UCDx5cTeADCvKWgF9x_Qjz3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 156680 khanacademymedicine
Respiratory System, Part 1: Crash Course A&P #31
 
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So we all know that breathing is pretty important, right? Today we're going to talk about how it works, starting with the nameless evolutionary ancestor that we inherited this from, and continuing to the mechanics of both simple diffusion and bulk flow, as well as the physiology of breathing, and finishing with the anatomy of both the conducting zone and the respiratory zone of your respiratory system. Table of Contents The Mechanics of Both Simple Diffusion and Bulk Flow 2:44 The Physiology of Breathing 4:07 Anatomy of the Conducting Zone 5:47 Anatomy of Respiratory Zone 7:07 *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark, Jan Schmid, Simun Niclasen, Robert Kunz, Daniel Baulig, Jason A Saslow, Eric Kitchen, Christian, Beatrice Jin, Anna-Ester Volozh, Eric Knight, Elliot Beter, Jeffrey Thompson, Ian Dundore, Stephen Lawless, Today I Found Out, James Craver, Jessica Wode, Sandra Aft, Jacob Ash, SR Foxley, Christy Huddleston, Steve Marshall, Chris Peters -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 2380540 CrashCourse
Alveolar-Blood Gas Exchange
 
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Views: 264 Dr. Umar Azizov
Systemic and Pulmonary Gas Exchange
 
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A description of gas exchange in the systemic capillaries and pulmonary capillaries, including an explanation of the chloride shift.
Lung Anatomy and Physiology | Gas Exchange in the Lungs Respiration Transport Alveoli Nursing
 
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Lung anatomy and physiology of gas exchange in the lung alveoli during respiration nursing lecture. This lecture details the anatomy of the lungs and how gas exchange in the lungs takes place between carbon dioxide and oxygen. The lung is made up of many components that participant in gas exchange. Inhaled air with oxygen enters into the upper respiratory system via the nose or mouth then through the nasal cavities, larynx, and trachea which splits at the carina into the right and left bronchus (primary bronchi). The primary bronchi and pulmonary vein and artery enter into the lungs at the hilum. The pulmonary artery delivers unoxygenated blood to the lungs, and the pulmonary vein delivers oxygenated blood back to the heart. The primary bronchi branches off into the lobar bronchi (also called secondary bronchi) then into the segmental bronchi (also called tetiary bronchi), and then into even smaller areas such as the bronchioles. The bronchioles connect to the alveolar sacs via the alveolar ducts. Gas exchange occurs in the alveolar sac within the alveoli. The alveoli sacs contain capillaries that help with transporting carbon dioxide and oxygen in and out of the body. The pulmonary artery brings unoxygenated blood through the capillary and carbon dioxide transports across the thin capillary wall and is transported out of the body through exhalation. Then the inhaled oxygen transports across the capillary wall onto the red blood cells which is taken via the pulmonary vein back to the heart to replenish the body with fresh oxygenated blood. Other facts about lung anatomy: the right lung has three lobes while the left lung has two lobes. The lung is made up of two layers: visceral pleura (surrounds the lungs) and parietal pleura (attaches to the thoracic cavity). In between these layers, is a small space of fluid that allows the lungs to glide on each other during inhalation and exhalation. Lung A & P quiz: https://www.registerednursern.com/lung-anatomy-and-physiology-quiz/ Notes: https://www.registerednursern.com/lung-anatomy-and-physiology-review-notes/ Respiratory Nursing Lectures: https://www.youtube.com/playlist?list=PLQrdx7rRsKfXxyukzyHpqYrJntLbv0aGE Subscribe: http://www.youtube.com/subscription_center?add_user=registerednursern Nursing School Supplies: http://www.registerednursern.com/the-ultimate-list-of-nursing-medical-supplies-and-items-a-new-nurse-student-nurse-needs-to-buy/ Nursing Job Search: http://www.registerednursern.com/nursing-career-help/ Visit our website RegisteredNurseRN.com for free quizzes, nursing care plans, salary information, job search, and much more: http://www.registerednursern.com Check out other Videos: https://www.youtube.com/user/RegisteredNurseRN/videos Popular Playlists: NCLEX Reviews: https://www.youtube.com/playlist?list=PLQrdx7rRsKfWtwCDmLHyX2UeHofCIcgo0 Fluid & Electrolytes: https://www.youtube.com/playlist?list=PLQrdx7rRsKfWJSZ9pL8L3Q1dzdlxUzeKv Nursing Skills: https://www.youtube.com/playlist?list=PLQrdx7rRsKfUhd_qQYEbp0Eab3uUKhgKb Nursing School Study Tips: https://www.youtube.com/playlist?list=PLQrdx7rRsKfWBO40qeDmmaMwMHJEWc9Ms Nursing School Tips & Questions" https://www.youtube.com/playlist?list=PLQrdx7rRsKfVQok-t1X5ZMGgQr3IMBY9M Teaching Tutorials: https://www.youtube.com/playlist?list=PLQrdx7rRsKfUkW_DpJekN_Y0lFkVNFyVF Types of Nursing Specialties: https://www.youtube.com/playlist?list=PLQrdx7rRsKfW8dRD72gUFa5W7XdfoxArp Healthcare Salary Information: https://www.youtube.com/playlist?list=PLQrdx7rRsKfVN0vmEP59Tx2bIaB_3Qhdh New Nurse Tips: https://www.youtube.com/playlist?list=PLQrdx7rRsKfVTqH6LIoAD2zROuzX9GXZy Nursing Career Help: https://www.youtube.com/playlist?list=PLQrdx7rRsKfVXjptWyvj2sx1k1587B_pj EKG Teaching Tutorials: https://www.youtube.com/playlist?list=PLQrdx7rRsKfU-A9UTclI0tOYrNJ1N5SNt Personality Types: https://www.youtube.com/playlist?list=PLQrdx7rRsKfU0qHnOjj2jf4Hw8aJaxbtm Dosage & Calculations for Nurses: https://www.youtube.com/playlist?list=PLQrdx7rRsKfUYdl0TZQ0Tc2-hLlXlHNXq Diabetes Health Managment: https://www.youtube.com/playlist?list=PLQrdx7rRsKfXtEx17D7zC1efmWIX-iIs9
Views: 124947 RegisteredNurseRN
Gas Exchange During Respiration
 
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Thanks to McGraw Hill you can watch and learn about gas exchange during respiration!
Views: 207876 lovexconquersx
Gas Exchange in Lungs Made Easy
 
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Subscribe to the drbeen Channel HERE: http://bit.ly/2GBhiS0 For more content from drbeen, click HERE: http://bit.ly/2GB41bU Watch drbeen videos HERE: http://bit.ly/2GB41bU Like drbeen on Facebook HERE: http://bit.ly/2GSSTGS Follow drbeen on Twitter HERE: http://bit.ly/2XeSVhV Follow drbeen on Instagram HERE: http://bit.ly/2ST2Zih Get new medical lectures across your devices. Stream anywhere, anytime. Try it for free! http://bit.ly/2QsIwQ5 Dr. Mobeen discusses the following topics in this video: Atmospheric gas pressures Water vapor pressure and its effect on the atmospheric pressure Pressure changes during inspiration The composition of the exhaled gases Factors affecting partial pressure of the oxygen Factors affecting partial pressure of the carbon dioxide
Exchange of gases / important topic for NEET / NEET prep / NCERT 11 / Respiratory system
 
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exchange of gases - https://unacademy.com/lesson/exchange-of-gases-in-hindi/TXCC7IGG weightage of biology chapters - https://unacademy.com/lesson/important-chapters-of-biology-for-neet-in-hindi/5J1PB6B4 12 Hacks for improve memory - https://unacademy.com/lesson/12-study-hacks-for-improving-memory-in-hindi/2ZDBYC80
What Happens When You Breathe? How The Lungs Work Animation - Respiratory System Gas Exchange  Video
 
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Breathing In (Inhalation) When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand. The intercostal muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale. As your lungs expand, air is sucked in through your nose or mouth. The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli (air sacs). Through the very thin walls of the alveoli, oxygen from the air passes to the surrounding capillaries (blood vessels). A red blood cell protein called hemoglobin (HEE-muh-glow-bin) helps move oxygen from the air sacs to the blood. At the same time, carbon dioxide moves from the capillaries into the air sacs. The gas has traveled in the bloodstream from the right side of the heart through the pulmonary artery. Oxygen-rich blood from the lungs is carried through a network of capillaries to the pulmonary vein. This vein delivers the oxygen-rich blood to the left side of the heart. The left side of the heart pumps the blood to the rest of the body. There, the oxygen in the blood moves from blood vessels into surrounding tissues. Breathing Out (Exhalation) When you breathe out, or exhale, your diaphragm relaxes and moves upward into the chest cavity. The intercostal muscles between the ribs also relax to reduce the space in the chest cavity. As the space in the chest cavity gets smaller, air rich in carbon dioxide is forced out of your lungs and windpipe, and then out of your nose or mouth. Breathing out requires no effort from your body unless you have a lung disease or are doing physical activity. When you're physically active, your abdominal muscles contract and push your diaphragm against your lungs even more than usual. This rapidly pushes air out of your lungs. How the Lungs and Respiratory System Work You usually don't even notice it, but twelve to twenty times per minute, day after day, you breathe -- thanks to your body's respiratory system. Your lungs expand and contract, supplying life-sustaining oxygen to your body and removing from it, a waste product called carbon dioxide. The Act of Breathing Breathing starts at the nose and mouth. You inhale air into your nose or mouth, and it travels down the back of your throat and into your windpipe, or trachea. Your trachea then divides into air passages called bronchial tubes. For your lungs to perform their best, these airways need to be open during inhalation and exhalation and free from inflammation or swelling and excess or abnormal amounts of mucus. The Lungs As the bronchial tubes pass through the lungs, they divide into smaller air passages called bronchioles. The bronchioles end in tiny balloon-like air sacs called alveoli. Your body has over 300 million alveoli. The alveoli are surrounded by a mesh of tiny blood vessels called capillaries. Here, oxygen from the inhaled air passes through the alveoli walls and into the blood. After absorbing oxygen, the blood leaves the lungs and is carried to your heart. Your heart then pumps it through your body to provide oxygen to the cells of your tissues and organs. As the cells use the oxygen, carbon dioxide is produced and absorbed into the blood. Your blood then carries the carbon dioxide back to your lungs, where it is removed from the body when you exhale. The Diaphragm's Role in Breathing Inhalation and exhalation are the processes by which the body brings in oxygen and expels carbon dioxide. The breathing process is aided by a large dome-shaped muscle under the lungs called the diaphragm. When you breathe in, the diaphragm contracts downward, creating a vacuum that causes a rush of fresh air into the lungs. The opposite occurs with exhalation, where the diaphragm relaxes upwards, pushing on the lungs, allowing them to deflate. Clearing the Air The respiratory system has built-in methods to prevent harmful substances in the air from entering the lungs. Respiratory System Hairs in your nose help filter out large particles. Microscopic hairs, called cilia, are found along your air passages and move in a sweeping motion to keep the air passages clean. But if harmful substances, such as cigarette smoke, are inhaled, the cilia stop functioning properly, causing health problems like bronchitis. Mucus produced by cells in the trachea and bronchial tubes keeps air passages moist and aids in stopping dust, bacteria and viruses, allergy-causing substances, and other substances from entering the lungs. Impurities that do reach the deeper parts of the lungs can often be moved up via mucous and coughed out or swallowed. In the lungs, oxygen and carbon dioxide (a waste product of body processes) are exchanged in the tiny air sacs (alveoli) at the end of the bronchial tubes.
Views: 172827 Science Art
Respiratory System, Part 2: Crash Course A&P #32
 
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Can a paper bag really help you when you are hyperventilating? It turns out that it can. In part 2 of our look at your respiratory system Hank explains how your blood cells exchange oxygen and CO2 to maintain homeostasis. We'll dive into partial pressure gradients, and how they, along with changes in blood temperature, acidity, and CO2 concentrations, change how hemoglobin binds to gases in your blood. (And yes, we'll explain the paper bag thing too!) Table of Contents How Blood Cells Exchange Oxygen and CO2 2:23 Partial Pressure Gradients 2:41 How Hemoglobin Binds to Gases in the Blood 4:40 The Thing With The Bag 9:04 *** Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark, Jan Schmid, Simun Niclasen, Robert Kunz, Daniel Baulig, Jason A Saslow, Eric Kitchen, Christian, Beatrice Jin, Anna-Ester Volozh, Eric Knight, Elliot Beter, Jeffrey Thompson, Ian Dundore, Stephen Lawless, Today I Found Out, James Craver, Jessica Wode, Sandra Aft, Jacob Ash, SR Foxley, Christy Huddleston, Steve Marshall, Chris Peters -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 1300628 CrashCourse
Respiratory System - Introduction | Biology for All | FuseSchool
 
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Your respiratory system is a system in humans that is designed to extract oxygen from the air so we can use it in respiration around the body and at the same time get rid of carbon dioxide gas into the air which is the waste product from respiration. oxygen gas travels through the respiratory system, as you inhale, the molecule is drawn in through the mouth or the nose, it goes into the back of the throat where it enters a tube called the trachea. The tractor or windpipe has special rings of cartilage to keep it open at all times so you can breathe if you are lying down asleep or on a trampoline. The oxygen molecule now travels down the trachea and they will go into either the left or the right lung via a tube called the bronchus. This bronchus then splits into smaller tubes called bronchioles and finally the oxygen molecule will make its way into a tiny air sac called an alveolar, these alveoli are surrounded by tiny blood vessels called capillaries and the oxygen molecule now passes across from the air into the blood via a process of diffusion. At the same time the carbon dioxide molecule goes the other way coming out of the blood and into the alveoli as you exhale. As you exhale the carbon dioxide will take the journey back up the bronchioles a bronchus the trachea and out of the mouth. This happens to millions of molecules with each breath have about 300 million alveoli in each lung. On average, you breathe like this 12 to 16 times a minute. Unlike your digestive system the respiratory system is a dead end. If something bad gets into your lungs it's very hard to get it back out. As usual the body has an answer to look very closely at the cells lining the tracker and the bronchi some of them have tiny little hairs on called cilia and in between these cells are other cells called goblet cells that are secreting mucus. This mucus traps dirt dust and bacteria before entered the lungs. The cilia then what this mucus up into the mouth where it can be swallowed to be killed by your stomach acid. There are many things that can go wrong with your lungs such as asthma, pneumonia and diseases associated with smoking such as emphysema and chronic bronchitis. However, if you have a problem a doctor may perform a bronchoscopy. This is when they put a tube with a light and the camera on it into your Airways and look for signs of inflammation or bleeding. SUBSCRIBE to the FuseSchool YouTube channel for many more educational videos. Our teachers and animators come together to make fun & easy-to-understand videos in Chemistry, Biology, Physics, Maths & ICT. VISIT us at www.fuseschool.org, where all of our videos are carefully organised into topics and specific orders, and to see what else we have on offer. Comment, like and share with other learners. You can both ask and answer questions, and teachers will get back to you. These videos can be used in a flipped classroom model or as a revision aid. Find all of our Chemistry videos here: https://www.youtube.com/watch?v=cRnpKjHpFyg&list=PLW0gavSzhMlReKGMVfUt6YuNQsO0bqSMV Find all of our Biology videos here: https://www.youtube.com/watch?v=tjkHzEVcyrE&list=PLW0gavSzhMlQYSpKryVcEr3ERup5SxHl0 Find all of our Maths videos here: https://www.youtube.com/watch?v=hJq_cdz_L00&list=PLW0gavSzhMlTyWKCgW1616v3fIywogoZQ Twitter: https://twitter.com/fuseSchool Access a deeper Learning Experience in the FuseSchool platform and app: www.fuseschool.org Follow us: http://www.youtube.com/fuseschool Friend us: http://www.facebook.com/fuseschool This Open Educational Resource is free of charge, under a Creative Commons License: Attribution-NonCommercial CC BY-NC ( View License Deed: http://creativecommons.org/licenses/by-nc/4.0/ ). You are allowed to download the video for nonprofit, educational use. If you would like to modify the video, please contact us: [email protected]
GCSE Biology Revision: Exchange surfaces
 
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GCSE Biology Revision: Exchange surfaces In this video, we look at how surfaces are adapted for efficient diffusion and active transport. We look at the villi in the small intestine and at alveoli in the lungs.
Views: 63201 Freesciencelessons
Gas exchange 2- Partial pressures O2 & CO2
 
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Part 2 in an 8 part lecture on GAS EXCHANGE in a flipped Human Physiology course taught by Wendy Riggs. CC-BY. Watch the whole lecture (all 8 videos) by going to the PLAYLIST: https://www.youtube.com/playlist?list=PL5GRRRmaGVqWBUpn0V2lszcbNp_-TIJ0E
Views: 37904 Wendy Riggs
Travel of Air Through Respiratory System - Gas Exchange in the Lungs - Nose to Alveoli Pathway
 
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Gas Exchange - Delivery of Oxygen & Elimination of Carbon dioxide - Medical Animation Air first enters the body through the mouth or nose, quickly moves to the pharynx (throat), passes through the larynx (voice box), enters the trachea, which branches into a left and right bronchus within the lungs and further divides into smaller and smaller branches called bronchioles. The smallest bronchioles end in tiny air sacs, called alveoli, which inflate during inhalation, and deflate during exhalation. Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. It occurs in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli. The walls of the alveoli actually share a membrane with the capillaries in which oxygen and carbon dioxide move freely between the respiratory system and the bloodstream. Oxygen molecules attach to red blood cells, which travel back to the heart. At the same time, the carbon dioxide molecules in the alveoli are blown out of the body with the next exhalation.
Views: 40188 Science Art
Gaseous Exchange.mp4
 
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Views: 113718 OSFCPhysEd
[AS Biology CIE] Alveoli, Capillaries, Body Cells: Gas Exchange -Carbon Dioxide and Oxygen
 
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PLEASE NOTE: The Alveoli do NOT have smooth muscle. it is the BRONCHIOLE that LEADS UP to the Alveoli, that has smooth muscle. Hope it helps everyone! Please let me know what I can do better! And also if I have any mistakes what so ever please email me at [email protected] or just simply comment below so I don't write down the wrong answer in the exam, cheers!
Views: 1603 Joyce Chen
Diffusion of gases from alveoli to cells
 
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Aimed at Year 9 students, this video explains the movement of the gases Oxygen and Carbon Dioxide from the alveoli and cells into and out of capillaries. A large surface area to volume ration is important to achieve maximum diffusion.
Views: 23401 VolkScience
Breathing and exchanges of gases
 
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Follow us at: https://plus.google.com/+tutorvista/ Check us out at http://www.tutorvista.com/content/biology/biology-ii/respiration/huan-beings-gaseous-exchange.php Gas Exchange Respiratory System Breathing consists of two phases, inspiration and expiration. During inspiration, the diaphragm and the intercostal muscles contract. The diaphragm moves downwards increasing the volume of the thoracic (chest) cavity, and the intercostal muscles pull the ribs up expanding the rib cage and further increasing this volume. This increase of volume lowers the air pressure in the alveoli to below atmospheric pressure. Because air always flows from a region of high pressure to a region of lower pressure, it rushes in through the respiratory tract and into the alveoli. This is called negative pressure breathing, changing the pressure inside thelunsg relative to the pressure of the outside atmosphere. In contrast to inspiration, during expiration the diaphragm and intercostal muscles relax. This returns the thoracic cavity to it's original volume, increasing the air pressure in the lungs, and forcing the air out. Please like our facebook page http://www.facebook.com/tutorvista
Views: 46391 TutorVista
Internal respiration - gas exchange in body
 
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This human physiology lecture explains the internal respiration and gas exchange in human body. For more information, log on to- http://shomusbiology.weebly.com/ Download the study materials here- http://shomusbiology.weebly.com/bio-materials.html
Views: 12886 Shomu's Biology
The lungs and pulmonary system | Health & Medicine | Khan Academy
 
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The pulmonary system including the lungs, larynx, trachea, bronchi, bronchioles, alveoli and thoracic diaphragm. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/science/health-and-medicine/respiratory-system/gas-exchange-jv/v/alveolar-gas-equation-part-1?utm_source=YT&utm_medium=Desc&utm_campaign=healthandmedicine Missed the previous lesson? https://www.khanacademy.org/science/health-and-medicine/respiratory-system/respiratory-system-introduction/v/thermoregulation-in-the-lungs?utm_source=YT&utm_medium=Desc&utm_campaign=healthandmedicine Health & Medicine on Khan Academy: No organ quite symbolizes love like the heart. One reason may be that your heart helps you live, by moving ~5 liters (1.3 gallons) of blood through almost 100,000 kilometers (62,000 miles) of blood vessels every single minute! It has to do this all day, everyday, without ever taking a vacation! Now that is true love. Learn about how the heart works, how blood flows through the heart, where the blood goes after it leaves the heart, and what your heart is doing when it makes the sound “Lub Dub.” About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Health & Medicine channel: https://www.youtube.com/channel/UC1RAowgA3q8Gl7exSWJuDEw?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 1204506 Khan Academy
Gas Exchange During Respiration HD Animation
 
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A ------------------------------- Please Like, comment, share and subscribe 👍🏻❤️
Carbon Dioxide Transport in Blood - Gas Exchange
 
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Watch 800+ Medical Lectures at https://www.DrNajeebLectures.com ─────────────── DR. NAJEEB LECTURES ─────────────── Dr. Najeeb Lectures are the World's Most Popular Medical Lectures. Over 1 Million+ students from 190 countries trust Dr. Najeeb Lectures to Master Medical Sciences. Sign up for a membership plan on our website and access 800+ videos on Basic Medical Sciences & Clinical Medicine. ───────────────── OUR YOUTUBE CHANNEL ───────────────── Here on YouTube, we only upload free sample videos. Most of them are teaser videos (not complete lectures). If you like these videos you can check out our entire video library on our website at https://www.DrNajeebLectures.com. ────────────────────── WHY SIGN UP FOR MEMBERSHIP? ────────────────────── ► 800+ Medical Lectures. ► Basic Medical Sciences. ► Clinical Medicine. ► New videos every week in HD. ► Download videos for offline access. ► Fast video playback (0.5x - 2x) ► Watch videos on any device. ► Fanatic customer support. ► Trusted by 1 Million+ students. Learn more at https://www.DrNajeebLectures.com
Views: 47211 Dr. Najeeb Lectures
NEET I Biology I Breathing and exchange of gases I Shivani Bhargava (SB) Mam from ETOOSINDIA.COM
 
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Breathing and exchnage of gases video Lecture of Biology for NEET by SB Mam.SB Mam is known for herunique, focused and simplified NEET teaching to bring to students an easy and analytical methodology towards NEET. This course is designed and developed by the experienced faculty of KOTA and www.etoosindia.com. In this lecture SB Mam is giving the detailed view of respiratory tract, larynx, bronchial & respiratory tree. For more videos go to: https://goo.gl/H5FBZV
Views: 423570 Etoos Education
Gas Exchange in Alveoli
 
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Recorded with http://screencast-o-matic.com
Views: 547 Caroline Kim
Alveolar Gas Equation in 3 minutes!
 
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Please watch: "Video Course for FINAL MEDICAL EXAMS!" https://www.youtube.com/watch?v=H0oETfpRllA --~-- This is our recap of the Alveolar Gas Equation in three minutes! Learn how to calculate the concentration of oxygen in your alveoli and the factors you need to consider when calculating it. We look at the alveolar gas equation at extreme altitude, which will lead us on to the Alveolar-Arterial gradient in one of our later videos.
Views: 4225 QuickMedic
Alveolar gas equation - part 2 | Respiratory system physiology | NCLEX-RN | Khan Academy
 
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Find out how to calculate exactly how much oxygen is deep down inside your lungs! Rishi is a pediatric infectious disease physician and works at Khan Academy. These videos do not provide medical advice and are for informational purposes only. The videos are not intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of a qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read or seen in any Khan Academy video. Created by Rishi Desai. Watch the next lesson: https://www.khanacademy.org/test-prep/nclex-rn/rn-respiratory-system/gas-exchange-pf/v/henry-s-law?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn Missed the previous lesson? https://www.khanacademy.org/test-prep/nclex-rn/rn-respiratory-system/gas-exchange-pf/v/alveolar-gas-equation-part-1?utm_source=YT&utm_medium=Desc&utm_campaign=Nclex-rn NCLEX-RN on Khan Academy: A collection of questions from content covered on the NCLEX-RN. These questions are available under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 United States License (available at http://creativecommons.org/licenses/by-nc-sa/3.0/us/). About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s NCLEX-RN channel: https://www.youtube.com/channel/UCDx5cTeADCvKWgF9x_Qjz3g?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 100894 khanacademymedicine
Gas Exchange - 1/2
 
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Gas Exchange. Intercambio Gaseoso Alveolar
Views: 48409 Carpe Noctum

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