Atrial natriuretic peptide is a hormone that
A. is stimulated to release when blood volume decreases.
B. inhibits the release of renin and aldosterone.
C. raises blood pressure.
D. is released from the adrenal cortex and stimulates atrial hormones.
Answer: B
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Otitis media is
A) an infection of the pinna. B) also known as swimmer's ear. C) an infection of the middle ear. D) an infection of semicircular canals. E) a ringing in the ears.
Which ligament holds the radius to the ulna at the proximal end?
A) anular B) ulnar collateral C) radial collateral D) iliofemoral
Answer the following questions true (T) or false (F)
1. Type IIx fibers produce the fastest, strongest twitches of any muscle fiber type. 2. Cindy's leg muscles displayed a state of hypotonia since her arm was recently removed from a cast. 3. Both isotonic eccentric contractions and isotonic concentric contractions shorten the muscle.
Which of the following accounts for the heart sounds "lubb-dubb"?
A) closing of the semilunar and atrioventricular valves, respectively B) opening of the semilunar and atrioventricular valves, respectively C) closing of the atrioventricular and semilunar valves, respectively D) opening of the atrioventricular and semilunar valves, respectively