Gas Exchange in the Alveoli
- Biology
- Class 11
- 3D model
- English
Gas Exchange in the Alveoli: a 3D model for Class 11 Biology, covering Air travels down the branching airways to millions of tiny alveoli…, Each alveolus is wrapped in capillaries. Air and blood are separated by a very thin respiratory barrier…, Gases cross this barrier by simple diffusion, from higher to lower partial pressure. There are no pumps or valves for…, pO2 is 104 mmHg in alveolar air and 40 mmHg in blood arriving at the lungs, so oxygen diffuses into the blood…, pCO2 is 45 mmHg in arriving blood and 40 mmHg in alveolar air, so carbon dioxide diffuses out. The gradient is small….
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Also called
gas exchange · exchange of gases · alveolar gas exchange · alveoli · alveolus · air sacs · alveolar sac · respiratory membrane · diffusion membrane · respiratory barrier · pulmonary capillary · lung capillary · partial pressure · oxygen diffusion · carbon dioxide diffusion · oxygen transport · carbon dioxide transport · haemoglobin · hemoglobin · oxyhaemoglobin · bicarbonate · red blood cells · breathing and exchange of gases · Fick law diffusion · pO2 · pCO2
Topics
About this model
A GLB file of about 1254 KB, shown in Lably's 3D viewer and, on a phone, placed in your room with AR. Credit: Alveolar sac halves adapted from "Lung air sacks" by Jose Luis Martínez, Tactiles (tactiles.eu), CC BY-SA 4.0. Lung and airway tree simplified from the HuBMAP Human Reference Atlas CCF 3D Reference Object Library (VH male lung; Kristen Browne et al., NIH/NIAID; derived from the NLM Visible Human Project), CC BY 4.0. All other geometry and animation newly authored for Lably. The model as a whole is shared under CC BY-SA 4.0. | CC BY-SA 4.0
