https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/lung-introduction/v/inhaling-and-exhaling 2023-08-17T23:33:36.770424498Z Inhaling and exhaling Find out exactly why air goes in and out of the lungs. Discover how changes in lung volume affect air pressure, leading to the movement of air molecules in and out of the lungs. This process, crucial for respiration, is explained using a simple jar analogy. Rishi is a pediatric infectious disease physician and works at Khan Academy. Rishi Desai video https://cdn.kastatic.org/googleusercontent/SQkfgiCLzTh4R0AaTjEc2gRwVwDpZBjzLDmWoFgNl9aRs3O6Zzk9Im888XuR9CAHjiXnSAlgQiKv7AtZJGWNK39hkQ Inhaling and exhaling Find out exactly why air goes in and out of the lungs. Discover how changes in lung volume affect air pressure, leading to the movement of air molecules in and out of the lungs. This process, crucial for respiration, is explained using a simple jar analogy. Rishi is a pediatric infectious disease physician and works at Khan Academy. https://cdn.kastatic.org/ka-youtube-converted/mykrnTh1tz8.mp4/mykrnTh1tz8.mp4 779 Breathing and Exchange of Gases https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/lung-introduction/v/how-does-lung-volume-change 2020-09-09T23:28:11Z How does lung volume change? Learn about how muscle contraction and lung recoil actually help the lungs change their volume with every breath! Rishi is a pediatric infectious disease physician and works at Khan Academy. Rishi Desai video https://cdn.kastatic.org/googleusercontent/Svp5O2K5VNRFki7UNLdrrwSaDaiog3zx0oHOj1Tfrgc_zszCADB68drM-ibzePQDHmUAlYJwWCXbAu0dpqAK4xoE How does lung volume change? Learn about how muscle contraction and lung recoil actually help the lungs change their volume with every breath! Rishi is a pediatric infectious disease physician and works at Khan Academy. https://cdn.kastatic.org/ka-youtube-converted/dTsUyXXudvA.mp4/dTsUyXXudvA.mp4 490 Breathing and Exchange of Gases https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-2/x01ceb15d0be61009:untitled-589/e/mechanism-of-breathing 2025-01-29T06:48:52.84441926Z Mechanism of breathing Inspiration, expiration, intrapulmonary pressure gradients, intercostal muscles, diaphragm. mahathi exercise https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-2/x01ceb15d0be61009:untitled-589/v/partial-pressure-and-exchange-of-gases 2023-04-07T21:01:16.754798936Z Partial pressure and exchange of gases Let's understand how oxygen and carbon dioxide diffuse between the alveoli and the blood, and between the blood and the body tissues. Khadijatul Qubra video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Partial pressure and exchange of gases Let's understand how oxygen and carbon dioxide diffuse between the alveoli and the blood, and between the blood and the body tissues. https://cdn.kastatic.org/ka-youtube-converted/gHdHsfj304M.mp4/gHdHsfj304M.mp4 721 Breathing and Exchange of Gases https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-2/x01ceb15d0be61009:untitled-589/v/alveoli-site-of-gaseous-exchange 2023-02-08T23:01:11.091160115Z Alveoli - site of gaseous exchange Let's look at the structure of alveoli, which makes them so suitable for the exchange of gases. Khadijatul Qubra video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Alveoli - site of gaseous exchange Let's look at the structure of alveoli, which makes them so suitable for the exchange of gases. https://cdn.kastatic.org/ka-youtube-converted/ku-XRucT2oo.mp4/ku-XRucT2oo.mp4 443 Breathing and Exchange of Gases https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-2/x01ceb15d0be61009:untitled-589/e/exxhange-of-gases 2026-01-24T15:20:42.617490009Z Exchange of gases Partial pressure, pressure gradients of oxygen and carbon dioxide, diffusion membrane mahathi exercise https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/introduction-to-hematologic/v/hemoglobin-moves-o2-and-co2 2020-09-09T11:23:52Z Hemoglobin moves O2 and CO2 Learn the two ways that oxygen moves from the lungs to the tissues, and the three ways that carbon dioxide returns from the tissues to the lungs. Rishi is a pediatric infectious disease physician and works at Khan Academy. Rishi Desai video https://cdn.kastatic.org/googleusercontent/HOI9b9WyfLwPbGDb-HOalXmb-CM3QtzCguqN__wh4UJpneNSv3oOb3AWIaPf9qklhYwANAqWpB9rY1KtmLn_XTDRaw Hemoglobin moves O2 and CO2 Learn the two ways that oxygen moves from the lungs to the tissues, and the three ways that carbon dioxide returns from the tissues to the lungs. Rishi is a pediatric infectious disease physician and works at Khan Academy. https://cdn.kastatic.org/ka-youtube-converted/QP8ImP6NCk8.mp4/QP8ImP6NCk8.mp4 898 Breathing and Exchange of Gases https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-2/x01ceb15d0be61009:untitled-589/e/transport-of-oxygen-and-carbon-dioxide 2026-01-24T15:20:42.617490009Z Transport of oxygen and carbon dioxide Hemoglobin, oxyhemoglobin, carbamino-hemoglobin, carbonic anhydrase, bicarbonate mahathi exercise https://www.khanacademy.org/science/up-biology-grade-11-revision-course-full-term/x01ceb15d0be61009:week-2/x01ceb15d0be61009:untitled-589/v/the-regulation-of-respiration 2023-04-07T08:38:26.466392798Z The regulation of respiration How is breathing regulated? Who tells our respiratory muscles to contract? How do we automatically start breathing faster when we exercise? Explore all this in this video. Khadijatul Qubra video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw The regulation of respiration How is breathing regulated? Who tells our respiratory muscles to contract? How do we automatically start breathing faster when we exercise? Explore all this in this video. https://cdn.kastatic.org/ka-youtube-converted/v8TMdO_Uzws.mp4/v8TMdO_Uzws.mp4 616 Breathing and Exchange of Gases