The gonads appear as the

A. paramesonephrons.
B. urogenital folds.
C. labioscrotal swellings.
D. gonadal ridges.
E. gonadal grooves.


D

Anatomy & Physiology

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The bone marrow is the major site for the formation of most blood cells

Indicate whether the statement is true or false

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Tight junctions between ________ are responsible for the formation of the blood-testis barrier.

A. Sertoli cells B. spermatogonial cells C. trophoblast cells D. Leydig cells

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Surgical incision of the perineum and vagina to facilitate delivery of the fetus is called:

A) vulvectomy B) episiotomy C) vaginectomy D) vaginotomy

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The principal means of increasing heat production in response to a cold environment is:

A. vasoconstriction of blood vessels in the skin. B. wearing warm clothing. C. shivering thermogenesis and increased voluntary activity. D. vasodilation of blood vessels in skin. E. increasing food intake to elevate the metabolic rate.

Anatomy & Physiology