If ______ is lacking in the diet, the thyroid gland enlarges, producing a goiter.
A) thyroxin
B) iron
C) iodine
D) calcium
E) phosphorus
Ans: C) iodine
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Blood vessels enter the diaphysis of a long bone through an opening called the _________ foramen
Fill in the blank with correct word.
Which plexus gives rise to nerves that supply the hamstring muscles?
A. Gluteal plexus B. Sacral plexus C. Cervical plexus D. Lumbar plexus E. Brachial plexus
When the body is overheated, the skin responds by
A) decreasing melanin production. B) losing oxygen to surrounding tissues. C) constricting blood vessels. D) dilating blood vessels. E) increasing keratin production.
The possibility of some control over autonomic responses is demonstrated by ________.
A) split brain studies B) stress-induced hypertension C) biofeedback D) nightmares