Valves are found in some
A) capillaries.
B) veins.
C) arteries.
D) arteries and veins.
Correct Answer:
Verified
Q44: All of the following mechanisms assist veins
Q45: Excess levels of blood K+
A)increase heart rate
Q46: As arterioles constrict, peripheral resistance _ and
Q47: At the venular end of a capillary,
Q48: _ contain nearly 60% of the total
Q50: The nerve impulses from the sympathetic neurons
Q51: The wall of capillaries consists of
A)a layer
Q52: An increase in _ nerve impulse frequency
Q53: The tunica media is found in
A)veins only.
B)arteries
Q54: The diastolic blood pressure is the lowest
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