Why does the superior part of the esophagus contain skeletal muscle instead of smooth muscle?
A. The first phase of swallowing is under involuntary control.
B. The second phase of swallowing is under voluntary control.
C. The first phase of swallowing is under voluntary control.
D. The second phase of swallowing is under involuntary control.
C
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Which is not considered to be a symptom of menopause?
A. Periodic elevations in body temperature B. Increase in the amount of facial hair C. Vaginal dryness D. Osteoporosis E. No exceptions; all choices are considered to be symptoms of menopause.
__________ means on the same side
Fill in the blank(s) with correct word
Which of the following receptors are rapidly adapting?
a. proprioceptors b. nociceptors c. Pacinian corpuscles d. muscle receptors e. All of the above
Pancreatic centroacinar cells:
a. Are contractile and promote the movement of secretions b. Contain clusters of zymogen granules c. Phagocytize dying cells d. Remove bile salts from the common bile duct e. Represent the initial portions of intercalated duct epithelia