Which muscle(s) of respiration is(are) innervated by the phrenic nerve?
A) Innermost intercostals
B) External intercostals
C) Diaphragm
D) Internal intercostals
E) Pectoralis major
C
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The female structure that is derived from the same embryonic structures as the penis in males is the
A) vagina. B) clitoris. C) vestibule. D) labia minora. E) labia majora.
Keratin and collagen are considered ________ proteins.
A. structural B. fibrous C. functional D. Both structural and fibrous are correct.
The ability to concentrate the urine depends on:
a. Active transport of sodium by the proximal tubule b. Creation of a medullary osmotic gradient by the loop of Henle c. The presence of ADH d. Both b and c are correct
Severe diarrhea results in the increased elimination of
A. hydrogen ions and therefore causes acidosis. B. hydrogen ions and therefore causes alkalosis. C. bicarbonate ions and therefore causes acidosis. D. bicarbonate ions and therefore causes alkalosis.