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Flashcards in circulatory system Deck (8)
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1

Pulse

ventricles contracts, artery walls to bulge and spring back

2

Systemic circuit

distribution of blood to particular body parts is adjusted by altering the diameter of arterioles

3

Vasodilation

occurs in arterioles in the extremities

4

Vasoconstriction

occurs in arterioles of the gut

5

capillary

cylinder of endothelial cells, one cell thick, wrapped in basement membrane, its tiny diameter facilitate exchanges between blood and interstitial fluid

6

Capillaries empty to

veins

7

exchange of oxygen happens

with veins, low-resistance vessels that convey blood to the heart. Veins have a flaplike valves that help prevent backflow

8

blood pressure

pressure exerted by blood on the walls of blood vessels