Oxygen moves from the alveoli to the blood by passing through the alveolar epithelium and then the capillary endothelium.
Oxygen moves from the alveoli to the blood by passing through the alveolar epithelium and then the capillary endothelium.
| Front | Describe the path by which oxygen goes from an alveolus to the blood ( 2 marks) |
|---|---|
| Back | Through alveolar epithelium; Through capillary epithelium/endothelium; |
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