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of the three types of capillaries, the ones with tight junctions between the cells and no pores are
systolic
precapillary sphincters
skeletal muscle contraction
anastomosis
vasoconstriction
decreases, increases
elastic
continuous
precapillary sphincters regulate blood flow to the capillaries by a process called
systolic
precapillary sphincters
skeletal muscle contraction
anastomosis
vasoconstriction
decreases, increases
elastic
continuous
as arteries travel away from the heart their diameter ___, as veins get closer to the heart their diameter
systolic
precapillary sphincters
skeletal muscle contraction
anastomosis
vasoconstriction
decreases, increases
elastic
continuous
small rings of smooth muscle called ______ _______ encircle the metarterioles and arteriole side of capillary beds.
systolic
precapillary sphincters
skeletal muscle contraction
anastomosis
vasoconstriction
decreases, increases
elastic
continuous
arteries nearest the heart have the most _______ fibers, as they are subject to the most pressure
systolic
precapillary sphincters
skeletal muscle contraction
anastomosis
vasoconstriction
decreases, increases
elastic
continuous
the contraction of the heart produces pressure waves in the arteries, the peaks of which give _________ blood pressure
systolic
precapillary sphincters
skeletal muscle contraction
anastomosis
vasoconstriction
decreases, increases
elastic
continuous
venous return to the heart is assisted passively by
systolic
precapillary sphincters
skeletal muscle contraction
anastomosis
vasoconstriction
decreases, increases
elastic
continuous
a blood vessel connecting two other blood vessels, which creates a redundant pathway for blood flow is an
systolic
precapillary sphincters
skeletal muscle contraction
anastomosis
vasoconstriction
decreases, increases
elastic
continuous
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