Structure I is composed of
A) actin and perimysium.
B) actin and myosin.
C) troponin and tropomyosin.
D) only myosin heads.
E) acetylcholine and cholinesterase.
B) actin and myosin.
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The functional units of kidneys where blood is filtered and urine produced are called
A) pyramids. B) nephrons. C) calyces. D) lobules. E) lobes.
Secretion of insulin causes
A) a decrease in the permeability of cell membranes to glucose. B) an increase in the breakdown of glycogen to release glucose. C) an increase in the concentration of blood glucose. D) a decrease in the concentration of blood glucose.
At the end of inspiration and at the end of expiration, intrapleural pressure is always equal to atmospheric pressure
Indicate whether the statement is true or false
A patient with prerenal acute renal failure would MOST likely present with:
A) confusion and hypertension. B) joint pain and bladder distention. C) hypotension and tachycardia. D) peripheral edema and hematuria.