Which group of antiulcer medications blocks receptors on parietal cells in the stomach, thereby reducing gastric acid secretion?
a. mucosal protectives
b. H2-receptor antagonists
c. systemic antacids
d. nonsystemic antacids
.B
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Which of the following is NOT true of the vagina?
A. It is part of the female external genitalia. B. It receives the penis during intercourse. C. It functions as the birth canal. D. It allows passage of menstrual fluid out of the uterus.
The pH of saliva is
A) highly basic. B) slightly basic. C) neutral. D) slightly acidic. E) very acidic.
Molecule A has a molecular weight of 175 and Molecule B has a molecular weight of 450. A 0.1 M solution of each is placed on agar gel. Which molecule will diffuse more rapidly through the agar?
A) molecule A B) molecule B C) They will move at the same rate.
The spinal tract that carries sensations from proprioceptors to the CNS is the
A) fasciculus gracilis. B) fasciculus cuneatus. C) spinocerebellar. D) lateral spinothalamic. E) anterior spinothalamic.