CV Flashcards Preview

phase 1a > CV > Flashcards

Flashcards in CV Deck (6):
1

Define preload

volume of blood in ventricles at end of diastole

2

define afterload

pressure needed to overcome by the ventricles during ejection

3

define contractility

instrinsic ability for heart to contract (can be increased by sympa activity and increase preload due to stretch)

4

define elasticity

ability to return to normal shape after stretching by recoiling once the force has been removed

5

define compliance

ability to distend and increase in volume

6

define resistance

action of blood vessels to control blood flow (increased resistance = reduced flow)