What do veins have that arteries lack?
A) a tunica externa
B) oxygenated blood
C) an inner membrane of endothelium
D) blood flowing from the heart
E) valves
Correct Answer:
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Q15: Which of the following are agranular leukocytes?
A)
Q28: Smooth muscle in the arteriole walls can
Q29: Following some minor surgery on a patient,
Q30: A vein always carries:
A) blood to the
Q33: The characteristic that enables efficient gas exchange
Q33: The rapid onset of overproduction of immature
Q34: Which chemical, contained in the granules of
Q35: Thrombocytes (platelets) are formed by:
A) cell division
Q38: When a blood vessel is cut, why
Q40: _ are leukocytes that produce antibodies.
A) Lymphocytes
B)
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