| Front | Describe expiration. |
|---|---|
| Back | - external intercostal muscles relax - elastic tissue recoils - ribcage moves downwards and inwards - diaphragm muscle relaxes - diaphragm pushed upwards by abdominal contents - thorax volume decreases - thorax pressure increases - air moves out of lungs into atmosphere down pressure gradient |
Tags: gas_exchange
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Inspiration expiration active which of
Previous card: Intercostal muscles diaphragm thorax pressure describe inspiration external
Up to card list: AQA A Level Biology