https://www.khanacademy.org/science/health-and-medicine/human-anatomy-and-physiology/lung-introduction/v/meet-the-lungs 2024-04-04T15:34:20.714536152Z Meet the lungs! Breathing in through the mouth or nose, air travels down the throat, through the Adam's apple or voice box, and into the lungs. The lungs, which look like an upside-down tree, direct air to tiny sacs called alveoli. Oxygen from the air enters the bloodstream, while waste carbon dioxide exits into the alveoli and is exhaled. This process is vital for human survival. Rishi Desai video https://cdn.kastatic.org/googleusercontent/uH7kTzlYMjpw2kX36_nrlBZ_1Q4BmB8OwW_tVhTLOdAD8DsUUgNrol2mUSTQgJpc4c3xwRT1iOcP2YQpTDjw5zqn Meet the lungs! Breathing in through the mouth or nose, air travels down the throat, through the Adam's apple or voice box, and into the lungs. The lungs, which look like an upside-down tree, direct air to tiny sacs called alveoli. Oxygen from the air enters the bloodstream, while waste carbon dioxide exits into the alveoli and is exhaled. This process is vital for human survival. https://cdn.kastatic.org/ka-youtube-converted/qGiPZf7njqY.mp4/qGiPZf7njqY.mp4 576 Respiration in plants https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:untitled-78/x37589313f9a4c197:respiration/v/breathing 2025-05-19T18:05:00.296803688Z How do we breathe - Model of Lungs Let's build a model for lungs and understand how breathing works! Vibhor Pandey video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw How do we breathe - Model of Lungs Let's build a model for lungs and understand how breathing works! https://cdn.kastatic.org/ka-youtube-converted/HQ2kYI_ABlc.mp4/HQ2kYI_ABlc.mp4 235 Respiration in plants https://www.khanacademy.org/science/bridge-course-class-10th-science/x37589313f9a4c197:untitled-78/x37589313f9a4c197:respiration/e/respiration-in-humans 2026-04-07T22:23:57.656416987Z Respiration in humans Let's solve some questions on respiration in humans Vibhor Pandey exercise https://www.khanacademy.org/science/bridge-course-class-11th-biology/xfa1bbeaa3bc88e64:plant-physiology/xfa1bbeaa3bc88e64:human-physiology/v/respiration-breathing 2023-07-22T12:58:50.833720644Z Respiration & breathing Let's summarise the important steps of cellular respiration - aerobic respiration and anaerobic respiration - and breathing. Mahesh Shenoy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Respiration & breathing Let's summarise the important steps of cellular respiration - aerobic respiration and anaerobic respiration - and breathing. https://cdn.kastatic.org/ka-youtube-converted/dYltl8u7wcE.mp4/dYltl8u7wcE.mp4 349 Respiration in plants https://www.khanacademy.org/science/bridge-course-class-11th-biology/xfa1bbeaa3bc88e64:plant-physiology/xfa1bbeaa3bc88e64:human-physiology/e/respiration-in 2026-04-09T13:10:38.304888012Z Respiration and Breathing Let's solve some questions! vibhor exercise https://www.khanacademy.org/science/tg-grade-10-life-science-bridge-course/x567934b6011e38cb:respiration/x567934b6011e38cb:respiration-in-other-animals/v/respiration-in-animals 2025-05-19T18:05:00.296803688Z Respiration in Animals How do animals breathe? Nivedhitha Suresh video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Respiration in Animals How do animals breathe? https://cdn.kastatic.org/ka-youtube-converted/-opViLYF-L0.mp4/-opViLYF-L0.mp4 202 Respiration in plants https://www.khanacademy.org/science/uk-science-class-7-new/x2afa7396c019dcda:nutrition-in-animals/x2afa7396c019dcda:breathing-in-animals/v/breathing-in-fishes 2025-10-01T04:00:43.064865848Z Breathing in Fishes In this video, we dive into the fascinating world of fish respiration and uncover how gills work to extract oxygen from water. We’ll explore: 1. Why fish breathe more often than humans 2. The structure of gills (arches, filaments, lamellae) explained simply 3. How water flows in and out of the mouth and operculum 4. The amazing gas exchange process — oxygen in, carbon dioxide out! Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Breathing in Fishes In this video, we dive into the fascinating world of fish respiration and uncover how gills work to extract oxygen from water. We’ll explore: 1. Why fish breathe more often than humans 2. The structure of gills (arches, filaments, lamellae) explained simply 3. How water flows in and out of the mouth and operculum 4. The amazing gas exchange process — oxygen in, carbon dioxide out! https://cdn.kastatic.org/ka-youtube-converted/ypgyvpJKs6A.mp4/ypgyvpJKs6A.mp4 179 Respiration in plants https://www.khanacademy.org/science/uk-science-class-7-new/x2afa7396c019dcda:nutrition-in-animals/x2afa7396c019dcda:breathing-in-animals/e/breathing-in-different-animals 2026-04-09T13:10:38.304888012Z Breathing in Different Animals This exercise helps you explore how different animals breathe — from lungs in mammals and birds, to gills in fish, skin in earthworms, and unique adaptations in frogs. Bitasta Datta exercise