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A) blood viscosity
B) total blood vessel length
C) blood vessel diameter
D) blood vessels type
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A) Venous valves are formed from the tunica media.
B) Up to 35% of total body blood is in venous circulation at any given time.
C) Veins have a small lumen in relation to the thickness of the vessel wall.
D) Veins are called capacitance vessels or blood reservoirs.
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A) ADH
B) atrial natriuretic peptide
C) angiotensin II
D) nitric acid
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A) 120/80 in a 30-year-old man
B) 140/90 in a 70-year-old woman
C) 170/96 in a 50-year-old man
D) 110/60 in a 20-year-old woman
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A) Their prime function is the exchange of nutrients and wastes between the blood and tissue cells.
B) The contraction and relaxation of the smooth muscle in their walls can change their diameter.
C) They distribute blood to various parts of the body.
D) They contain a large quantity of elastic tissue.
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A) left side of the head and neck
B) myocardium of the heart
C) left upper arm
D) right side of the head and neck and right upper arm
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A) increasing stroke volume
B) increasing heart rate
C) rising blood volume
D) falling blood volume
E) all of these
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