Elastic fibres in artery walls stretch as blood pressure increases with ventricular contraction and recoil as pressure drops with ventricular relaxation, thus smoothing the blood flow.
Elastic fibres in artery walls stretch as blood pressure increases with ventricular contraction and recoil as pressure drops with ventricular relaxation, thus smoothing the blood flow.
Front | The elastin fibres in the wall of the artery help to smooth out the flow of blood. What happens to these fibres as the pressure of the blood in the artery changes? (2 mark) |
---|---|
Back | Stretch as pressure increases; Recoil/spring back as pressure drops; |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Diffusion rate explain structure capillaries related function walls
Previous card: Blood describe increase pressure artery results events cardiac
Up to card list: AQA Biology Flashcards