Osteoclasts and osteoblasts that travel through or across the bone surface removing and replacing old bone matrix are collectively called a(n) ________.

A. basic multicellular unit
B. osteogenic repair unit
C. bone reformation unit
D. osteon
E. callus multicellular unit


Answer: A

Anatomy & Physiology

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Indicate whether the statement is true or false

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Identify the ovary in the following figure

A) A B) B C) C D) D E) E

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In the spinal cord, the gray matter is arranged into ______ and the white matter is arranged into _____

Fill in the blank(s) with the appropriate word(s).

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Which statement about platelets is incorrect?

a. They are produced in the bone marrow. b. They form the meshwork of a blood clot in which other cellular elements become entrapped. c. They form a plug when they adhere to the exposed collagen of a damaged vessel. d. When aggregated, they release thromboxane A2 that promotes secretion of ADP. e. When aggregated, they release ADP, which causes the surface of nearby circulating platelets to become sticky so that they also adhere to the enlarging platelet plug.

Anatomy & Physiology