Hyperparathyroidism
A) increases risk of spontaneous fractures.
B) stimulates excessive osteoclast activity, softening bones.
C) is most often caused by a tumor.
D) all of the above.
D
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Select the correct statement regarding epithelia
A) Simple epithelia form impermeable barriers. B) Pseudostratified epithelia consist of at least two layers of cells stacked on top of one another. C) Stratified epithelia are tall, narrow cells. D) Stratified epithelia are present where protection from abrasion is important.
Which veins drain blood from the diaphragm?
A) phrenic veins B) hepatic veins C) adrenal veins D) renal veins
The nasopharynx is divided from the rest of the pharynx by the
A) hard palate. B) soft palate. C) cribriform plate. D) internal nares. E) pharyngeal septum.
An elongate outer layer containing membranous discs and a narrow connecting stalk that attaches the outer segment to the middle layer describes a(n)
A) bipolar cell. B) photoreceptor. C) ganglion cell. D) amacrine cell. E) horizontal cell.