What type of cell acts to support, nourish, and regulate the development of sperm?

A. Spermatogonia
B. Interstitial cells
C. Sustentacular cells
D. Both spermatogonia and sustentacular cells


Answer: C

Anatomy & Physiology

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Overseeing the postural muscles of the body and making rapid adjustments to maintain balance and equilibrium are functions of the

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"Complement" refers to a group of

A. white blood cells. B. plasma proteins. C. antibodies. D. molecules on the surface of pathogenic microbes.

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Which of the following is most responsible for keeping the lung surface and the thoracic wall from separating?

A. The negative pressure in the alveolar space B. Subatmospheric intrapleural pressure C. The presence of surfactant D. Alveolar pressure is higher than atmospheric pressure E. The force exerted by the external intercostal muscles

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Which of the following statements is FALSE?

A) The thymus consists mainly of lymphoid tissue. B) Antibodies mark antigens for destruction. C) T lymphocytes originate from the red bone marrow. D) Only lymph nodes filter lymph.

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