Physical Education GCSE
Alveoli
What Alveoli means in Physical Education GCSE, as defined for OCR.
Definitions of Alveoli
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Reference: OCR
Tiny air sacs where gas exchange occurs, suited to exchange by their large surface area and thin walls.
Tiny air sacs clustered at the ends of the bronchioles in the lungs, and the site of gas exchange.
Topics that use Alveoli
- 1.1.d. The cardiovascular and respiratory systems - Structure and function of the respiratory system (OCR GCSE)
Related terms
- Diaphragm structure and action
- Diffusion
- Gas exchange
- Intercostal muscle action
- minute ventilation
- Pressure and volume changes in the thorax
- tidal volume
- Air pathway
Using Alveoli in the exam
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