What unit of bone consists of a central canal (containing blood vessels, nerves, and lymph vessels) surrounded by concentric rings of calcified matrix?
A. Canaliculus
B. Trabeculum
C. Lamella
D. Osteocyte
E. Osteon
Answer: E
Anatomy & Physiology
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Which of the following is sometimes visible under the skin of the temporal region?
A. Maxillary artery B. Transverse facial artery C. Deep temporal artery D. Superficial temporal artery E. External jugular vein
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Indicate whether the statement is true or false
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A condition in which the focal point is beyond the retina because the eyeball is shorter is called _____.?
A) ?presbyopia B) ?myopia C) ?hyperopia D) ?diplopia
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