What is a small protein channel that allows the passage of ions and small molecules between cells?

A. Desmosomes
B. Gap junction
C. Tight junction
D. Hemidesmosomes
E. Adhesion belt


Answer: B

Anatomy & Physiology

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The primary response to microbial invasion is mediated by memory cells

Indicate whether the statement is true or false

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The partial pressure of carbon dioxide in the interstitial space of peripheral tissues is approximately

A) 35 mm Hg. B) 45 mm Hg. C) 55 mm Hg. D) 70 mm Hg. E) 100 mm Hg.

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Blood is a ________.

A) colloid B) homogeneous compound C) heterogeneous compound D) suspension

Anatomy & Physiology