Trabeculae are:
a. needlelike threads of spongy bone
b. the basic structure of cartilage
c. the basic structure of compact bone
d. the basic structure of bone marrow
a. needlelike threads of spongy bone
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Pneumothorax develops from the accumulation of fluid in the alveoli
Indicate whether the statement is true or false
A goiter is
a. an enlarged thyroid b. always the result of hypothyroidism c. present only with iodine-deficient diets d. only present when TSH levels are elevated e. both a and d
A decrease in the number of voltage-gated Ca2+ ion channels in the presynaptic terminal would
A. have no effect on transmission across the synapse. B. increase exocytosis. C. alter receptors on the postsynaptic membrane. D. enhance transmission across the synapse. E. reduce or inhibit transmission across the synapse.
The pelvic diaphragm is formed by the
A. levator ani only. B. deep transverse perineum muscle. C. levator ani and coccygeus muscles. D. sphincter urethrae and sphincter ani muscles. E. coccygeus only.