The glial cell with the responsibility of occupying the space left by dead or dying neurons is the
A. neurolemmocyte.
B. microglial cell.
C. astrocyte.
D. ependymal cell.
E. oligodendrocyte.
Answer: C
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In people who stand for long periods, blood tends to pool in the lower limbs and this may result in varicose veins. What causes the varicose veins?
A. An aneurysm or weak point in an artery B. An aneurysm or weak point in a vein C. Failure of the venous valves D. Failure of the lymphatic valves E. A ruptured aneurysm in a vein
At what age are nearly all bones completely ossified?
A) Birth B) 15 years C) 25 years D) 5 years
Hormone secretion from the anterior pituitary gland is controlled
a. by hypophysiotropic hormones from the hypothalamus. b. directly by neural innervation of anterior pituitary cells. c. by negative-feedback action of target-tissue hormones. d. both (a) and (c) above. e. all of these answers.
If you were to reach out your hand to receive a set of keys from someone, what movements of your forearm and hand would be involved?
A. Pronation and adduction B. Supination and extension C. Protraction and rotation D. Depression and flexion E. Eversion and abduction