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: 46295 Stile Education
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: 239579 Science Sauce
Find my revision workbooks here: https://www.freesciencelessons.co.uk/workbooks/shop/ In this video, we look at how gases are exchanged in the lungs. We start by looking at the overall structure of the lungs and then explore how the alveoli are adapted for maximum diffusion of gases in and out of the bloodstream. Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/?keywords=deliberate+thought Artist: http://incompetech.com/ Image credits: All images were created by and are the property of Autonomy Education Ltd.
Views: 132690 Freesciencelessons
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: 602850 Medical Institution
U can like my Facebook page ie. Vipin Sharma Biology Blogs for more information regarding every national level competitive exam in which biology is a part . Like this video share it with your frnds n subscribe to my channel if u r new. Thanq so much for supporting me guys 👍 😊. https://unacademy.com/user/vks199711-4457 Open this link and click on "follow" button as well as "login" to support me on Unacademy. Do share with all your friends. https://mbasic.facebook.com/Vipin-Sharma-Biology-Blogs-588472744670315/?__xt__=11.%7B%22event%22%3A%22visit_page_tab%22%2C%22user_id%22%3A100003119064758%2C%22page_id%22%3A588472744670315%7D
Views: 37301 Vipin Sharma Biology Tutorials
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
Views: 17837 Drbeen Medical Lectures
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: 48827 Dr. Najeeb Lectures
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: 2456863 CrashCourse
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: 65554 5MinuteSchool
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: 129296 RegisteredNurseRN
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]
Views: 43218 FuseSchool - Global Education
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: 38835 Wendy Riggs
Another video on Exchange! In this video we examine the gills as an example of an exchange surface. We also discuss how fish pass water over their gills and how countercurrent flow maintains favourable exchange of oxygen. Made for AQA AS Level students studying Unit 2: Variety of Living Organisms.
Views: 139686 Mr Pollock
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: 46942 Dr. John Campbell
In this video, we look at the tracheal system in insects. This is a nice quick and short topic, but can be tricky! - The overall structure of the system - Ventilation - Limitations - Preventing water loss This video was made for AQA AS Level Biology students studying Unit 2.
Views: 95227 Mr Pollock
A mini lessons for AS Biology Students. This relates to the AQA Specification, Unit 2: Variety of Living Organisms. Covered in this lesson: -Structure of the leaf -Structure and function of the stomata -Exchange in the leaf As ever, we're using the Toole & Toole AQA AS Biology textbook Enjoy!
Views: 80437 Mr Pollock
Get the NEW BLOOD FLOW app with several step-by-step videos several flash cards, quiz questions and notes to make sure you ace your exams!!! Apple Store: https://itunes.apple.com/us/app/blood-flow-through-the-heart/id887089053?mt=8 Google Play: https://play.google.com/store/apps/details?id=mobione.cardiacbloodflowpaid Get the ENDOCRINE app with videos on the go for Apple and Andoird devices!!! iTunes: https://itunes.apple.com/us/app/endocrine/id711858893?mt=8&ls=1 Google Play: https://play.google.com/store/apps/developer?id=John+Roufaiel Preview Video (on YouTube): http://www.youtube.com/watch?v=HLadhgHjcG4&feature=youtu.be Or search for "Endocrine" or "ProfRoofs" or "John Roufaiel" in the medical category. You can find this video and other helpful videos/materials on my website: www.profroofs.com This video introduces the details of external and internal respiration. It was produced in response to a viewer's request who had an upcoming exam. In the near future I hope to add more detail. Please feel free to add suggestions. Thank you.
Views: 153277 Prof. Roofs, MD
Useful for CBSE, ICSE, NCERT & International Students Grade : 10 Subject :Biology Lesson : Life process respiration Topic: Gas Exchange in Plants Gas Exchange in Plants. In order to carry on photosynthesis, green plants need a supply of carbon dioxide and a means of disposing of oxygen. In order to carry on cellular respiration, plant cells need oxygen and a means of disposing of carbon. Visit www.oztern.com to find personalized test preparation solutions for Pre Medical - AIPMT, AIIMS, JIPMER, State, Pre Engineering - IIT JEE, JEE MAIN, BITSAT, State and Foundations - Class 6 to 10.
Views: 33251 CBSE
Partial pressures of gases and gas exchange process in the lungs. Factors that affect gas exchange. This video and other related images/videos (in HD) are available for instant download licensing here : https://www.alilamedicalmedia.com/-/galleries/images-videos-by-medical-specialties/pulmonology ©Alila Medical Media. All rights reserved. Voice by: Ashley Fleming Support us on Patreon and get FREE image downloads and video early access: patreon.com/AlilaMedicalMedia All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. Gas exchange is the major purpose of the respiratory system. Inhaled air unloads oxygen and picks up carbon dioxide in the alveoli of the lungs, while the blood picks up oxygen and unloads carbon dioxide. The oxygenated blood then travels to body’s tissues, where the reverse process happens. In the lungs, the gases move across a very thin respiratory membrane which consists of alveolar squamous cells, endothelial cells of blood capillaries, and their fused basement membranes. The exchange of gases occurs due to simple diffusion, as they flow down their concentration gradient, or partial pressure gradient. Atmospheric air is a mixture of gases, each of which independently contributes to its total pressure. The pressure of each individual gas is known as partial pressure. The atmospheric pressure is the sum of all partial pressures of gases that make up its content. The direction of gas movement from one area to another is determined by the difference in its partial pressure. A gas always moves from higher to lower partial pressure. Atmospheric air is brought into the lungs through inhalation, but the lungs are not completely emptied and replaced with outside air with each cycle of breathing. In fact, only a relatively small portion of air in the alveoli is refreshed with each breath. This makes the air composition in the alveoli significantly different from that of inhaled air. The gas exchange in the lungs occurs between this alveolar air and the blood in capillaries. Because the volume of blood in pulmonary capillaries at any moment is much smaller than the total volume of air in the alveoli, the gas exchange process essentially brings partial pressures of oxygen and carbon dioxide in the blood to the same levels as those in alveolar air. It is therefore important that the composition of alveolar air is closely monitored and adjusted to maintain the same values. The body does just that: if carbon dioxide levels increase or oxygen levels drop, the airways automatically dilate to bring them back to normal, and vice versa. Since gas exchange occurs between the air and the liquid of the blood, the movement of individual gases also depends on their solubility in water. This explains why nitrogen, despite being plentiful in atmospheric and alveolar air, does not diffuse much into the blood. Factors that affect gas exchange include: - The magnitude of partial pressure gradient: the greater the pressure difference, the more rapid the gas movement. At high altitudes, where partial pressures of all atmospheric gases are lower, the gradient for oxygen is smaller and it needs more time to diffuse into the blood. – The thickness of the respiratory membrane: the thinner the membrane, the faster the gas diffuses. Diseases that cause pulmonary edema, such as pneumonia or left-sided heart failure, increase the thickness of respiratory membrane and hinder gas exchange. - The amount of gas exchanged is directly proportional to the contact surface between the blood and the alveolar air. Diseases that affect alveolar surface, such as emphysema, reduce gas exchange efficiency and produce low blood oxygen levels.
Views: 2215 Alila Medical Media
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
Views: 2294 Tarang aceadmy For crack neet in easy way
PATREON EXCLUSIVE PAST PAPER TUTORIALS https://www.patreon.com/cambridgein5minutes Hey guys ! Today we're looking at gas exchange in humans. Most of the topic is straight forward except for the section about how we breath in and out. For some it may be quite easy, but for some others it may be rather confusing. I've tried my best to explain to you how it works but if you still have further questions please comment below. Best of luck guys ! LINK FOR LIME WATER DEMONSTRATION: https://www.youtube.com/watch?v=QR6GsydYUSI 📘 FREE Comprehensive notes on https://www.freeexamacademy.com ✏️Join patreon to access EXCLUSIVE content! https://www.patreon.com/cambridgein5minutes ✔️ Past paper tutorials ✔️ Annotated exams ✔️ Power point slides ✔️ And more!
Views: 17542 Cambridge in 5 minutes
ilmkidunya.com has brought to you Lecture of Usama Qamar on "10th Class Biology Chapter 10 Gaseous Exchange. Topic 10.1 Gaseous Exchange in Plants". For more videos of Usama Qamar visit https://www.ilmkidunya.com/study , https://www.instutor.com This lecture is specially recorded for students of 10th class, 10th class from all Punjab Boards and is based on the current curriculum of study for Biology book. All these lectures are conducted in Urdu/English medium to facilitate Pakistani students.
Views: 32845 ilmkidunya
Learn how oxygen enters the body and how carbon dioxide exits by watching this video. Tuition classes http://www.vbest.edu.my/ Blogspot http://mrsaimun.blogspot.com/search/label/IGCSE Order Special Notes from http://buukbook.com/ Online 1 to 1 tuition lessons at http://www.mega.edu.my/ Education Tips & News http://mrsaimun.com/ Other videos: Biology — Factors Affecting Enzyme Activity: https://www.youtube.com/watch?v=48x8ddi_Ur4&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs Biology — Transport of Water in Plant: https://www.youtube.com/watch?v=dBtY61Ztm0I&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=2 Biology — Human Heart: https://www.youtube.com/watch?v=Qbqh4n47t6E&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=3 Biology — Transport System Plant: Xylem and Phloem: https://www.youtube.com/watch?v=n3xPYNA14aM&index=4&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs Biology — Inheritance of Blood Group and Rhesus Factor: https://www.youtube.com/watch?v=x-I6OXoOlpQ&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=5 Biology — Movement of Substances Across Plasma Membrane: https://www.youtube.com/watch?v=_sPuvAuKNtk&index=6&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs Biology — Lymphatic System: https://www.youtube.com/watch?v=9QBlgVTGkG4&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=7 Biology — Meiosis: https://www.youtube.com/watch?v=9U9sA4aT5ms&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=8 Biology — Plasma Membrane Structure: Phospholipid: https://www.youtube.com/watch?v=PaYLnZkOB_Y&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=9 Biology — Blood Vessels: https://www.youtube.com/watch?v=UHDBECleZvY&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=10 Biology — Urine Synthesis in Kidney: https://www.youtube.com/watch?v=XmAhuCzoDFM&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=11 Biology — Factors affecting Transpiration Rate: https://www.youtube.com/watch?v=J2DMGUHF5jY&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=12 Biology — Human Digestive System Part 1: https://www.youtube.com/watch?v=mFq1WctSnGw&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=13 Biology — Gaseous Exchange and Breathing Mechanism: https://www.youtube.com/watch?v=Wv1HWCzXzrY&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=14 Biology — Human Digestive System Part 2: https://www.youtube.com/watch?v=WpAITHlIaUY&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=15 Biology — Photosynthesis: https://www.youtube.com/watch?v=DEaSz-GnFlk&index=16&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs Biology — The Role of Immune System: https://www.youtube.com/watch?v=B2EQoHLYJIk&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs&index=17 Biology — Structure of Flower, Pollination and Fertilisation: https://www.youtube.com/watch?v=dYycFXECX14&index=18&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs Biology — Law of Inheritance: https://www.youtube.com/watch?v=9lqbyS-q66A&index=19&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs Biology — Neurone: https://www.youtube.com/watch?v=Wuqto7NaAOM&index=20&list=PLKrwB09sDEjofOVF3iXWR33nIDvorajvs
Views: 1264 mr sai mun
This video is a part of Pebbles AP Board & TS Board Syllabus Live Teaching Videos Pack. Class 6th to Class 10th and Intermediate Subjects Packs are available in all leading Book Stores in AP and TS. For online purchase of our products. visit www.pebbles.in To watch the rest of the videos buy this DVD at http://www.pebbles.in Engage with us on Facebook : https://www.facebook.com/PebblesChennai Twitter: https://twitter.com/PebblesChennai Google+: https://plus.google.com/b/116349844333442514419/116349844333442514419/posts?pageId=116349844333442514419 Playlist: https://www.youtube.com/playlist?list=PLrn2lobWkqKnafYVeE4OavSAmYIq7nO9R https://www.youtube.com/playlist?list=PLrn2lobWkqKnpwF3JBaGFS7rpLkgS0n61 Share & Comment If you like
Views: 11914 PRATHIBHA
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.
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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: 13376 Shomu's Biology
Know more about Exchange Of Gases. NEET Zoology XI Breathing and Exchange of Gases Exchange of gases in human lungs and tissues: The air reaches the alveoli of the lungs during the inspiration. The atmospheric air contains: Nitrogen - 78% Oxygen - 21 % Carbon dioxide - 0.03% The interchange of gases in the lungs occurs between the blood of the blood capillaries and the air of the alveoli of the lungs. Gases have some properties which are as follows: Gases always diffuse from an area of higher concentration to the area of lower concentration. During respiration the lungs and the respiratory tract are never empty of air. Instead, there is a tidal volume of air (about 500 ml). The total pressure exerted on the walls of the alveoli by the mixture of gases is the same as atmospheric pressure, 760 mm of Hg (millimeters of mercury). Each gas in the mixture exerts a part of the total pressure proportional to its concentration which is called the partial pressure. Table : Partial Pressure of Respiratory Gases (A) Pulmonary Gas Exchange (Gas Exchange in Lungs between alveoli and deoxygenated blood) Diagrammatic representation of exchange of gases at the alveolus and the body tissues with blood and transport of oxygen and carbon dioxide (B) Gas Exchange in Tissues (between oxygenated blood and tissues) Transport of gases in Blood: Blood carries oxygen from the lungs to the heart and from the heart to various body parts. The blood also brings carbon dioxide from the body parts to the heart and then to the lungs. A. Transport of Oxygen: As dissolved gas: About 3% of oxygen in the blood is dissolved in the plasma which carries oxygen to the body cells. As oxyhaemoglobin: About 97% of oxygen is carried in combination with haemoglobin of the erythrocytes. Bohr’s Effect : The relationship between the pCO2 and the percentage saturation of Hb with O2 (or affinity of Hb for O2) is known as Bohr’s effect. increase in pCO2 decrease affinity of Hb for O2 therefore promotes dissociation of Hb(O2)4 → Hb + 4O2.Ø decrease in pCO2 increase affinity of Hb for O2 therefore stimulates association of O2. Hb+ 4O2 → Hb + 4(O2)4. A Diagram of a section of an alveolus with a pulmonary capillary For more such resources go to https://goo.gl/Eh96EY Website: https://www.learnpedia.in/
Views: 9420 Learnpedia
ilmkidunya.com has brought to you Lecture of Usama Qamar on "10th Class Biology Chapter 10 Gaseous Exchange. Topic 10.0 Introduction About Gaseous Exchange". For more videos of Usama Qamar visit https://www.ilmkidunya.com/study , https://www.instutor.com This lecture is specially recorded for students of 10th class, 10th class from all Punjab Boards and is based on the current curriculum of study for Biology book. All these lectures are conducted in Urdu/English medium to facilitate Pakistani students.
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ADDITIONAL NOTE: Breathing in allows oxygen to get in the lungs, be diffused into the blood to be transported to cells of the body for respiration. Respiration occurs and produces carbon dioxide as a waste product which needs to be removed from the blood.When we breathe out carbon dioxide can then be released. Thanks for watching! For more information on my online courses, tutoring and classes: WEBSITE: https://cxc-biology-tutor.teachable.com EMAIL: [email protected] FACEBOOK: https://www.facebook.com/cxcbiologytutor/ INSTAGRAM: https://www.instagram.com/cxcbiologytutor/?hl=en
Views: 8084 CXC Biology Tutor
Part 8 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: 14494 Wendy Riggs
ilmkidunya.com has brought to you Lecture of Usama Qamar on "10th Class Biology Chapter 10 Gaseous Exchange. Topic 10.2 Gaseous Exchange in Humans". In this video following sub topics have been taught: - 10.2.1 The Air Passageway For more videos of Usama Qamar visit https://www.ilmkidunya.com/study , https://www.instutor.com This lecture is specially recorded for students of 10th class, 10th class from all Punjab Boards and is based on the current curriculum of study for Biology book. All these lectures are conducted in Urdu/English medium to facilitate Pakistani students.
Views: 66149 ilmkidunya
Download the Show Notes: http://www.mindset.co.za/learn/sites/files/LXL2013/LXL_Gr11LifeSciences_20_Gaseous%20Exchange_17July.pdf In this Grade 11 Life Sciences live show we take a close look at Gasesous Exchange. In this lesson we discuss what is gasesous exchange. We consider the requirements of an efficient gaseous exchange surface. We look at diversity in gas exchange systems. We discuss structure and adaptations of the human gaseous exchange systems. We look at the mechanism of breathing. We discuss gaseous exchange at lung surface and at tissue level. We look at transport of gases in the blood. We take a look at Homeostasis. Finally, we look at relevant terminology. Visit the Learn Xtra Website: http://www.learnxtra.co.za View the Learn Xtra Live Schedule: http://www.learnxtra.co.za/live Join us on Facebook: http://www.facebook.com/learnxtra Follow us on Twitter: http://twitter.com/learnxtra ( E00198918 )
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Breathing And Gaseous Exchange in Humans Explained
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In this video, we will look at gas exchange in lungs and how the body has adapted to complete this function in the most effective way possible. http://imstuck.wix.com/imstuckgcserevision
Views: 6126 I'm Stuck - GCSE and A-Level Revision
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: 431085 Etoos Education
Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse? http://www.facebook.com/YouTubeCrashCourse Follow us! http://www.twitter.com/TheCrashCourse Table of Contents 1) Respiratory System 00:48 2) Simple Diffusion 00:55 3) Respiratory Anatomy 02:35 a) Trachea to Capillaries 03:10 4) Lung Function & Thoracic Diaphragm 04:37 5) Circulatory System 05:35 6) Circulatory Anatomy 05:54 a) Left Ventricle to Capillary Beds 06:50 b) Veins to Left Atrium 08:46 7) Endotherms & Ectotherms 09:20 References for this episode can be found in the Google document here: http://dft.ba/-3cHg This video uses the following sounds from Freesound.org: "00559 deep breathing 1.wav" by Robinhood76 crash course, crashcourse, biology, animals, oxygen, carbon dioxide, cellular respiration, circulatory system, respiratory system, circulation, respiration, heart, lung, artery, vein, pulmonary, simple diffusion, membrane, lungfish, larynx, trachea, bronchus, bronchiole, alveolus, capillary, blood, inhale, exhale, diaphragm, thoracic, pressure, breathing, breath, pump, red blood cell, four chambered heart, ventricle, muscle, aorta, vena cava, atrium, endotherm, ectotherm, hank green Support CrashCourse on Subbable: http://subbable.com/crashcourse
Views: 1838999 CrashCourse