The epididymis is located on the posterior aspect of which of the following structures?
(A) urinary bladder
(B) prostate
(C) testis
(D) ovary
(E) uterine tube
Answer: (C) testis
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How many nuclei do most body cells contain?
A) 1 B) 2 C) 3 D) 4 E) over 10
All other factors being equal, the rate of diffusion across a permeable surface will be greater for small molecules than for larger ones.
Answer the following statement true (T) or false (F)
Esperanza is a 9-year-old girl who was prescribed a drug that increases the secretion of all hypothalamic hormones. Regarding reproduction, which of the following is TRUE of Esperanza?
A. Development of testes will occur. B. Puberty will be delayed. C. Puberty will begin. D. Maturation of ovaries will cease. E. None of these will occur.
Epithelial cells are continually being shed from the villi because
a. the intracellular enzymes digest important cellular constituents, causing the cells to disintegrate and slough. b. the body needs a continual supply of protein derived from the digestion of these cells. c. new cells are continually being produced in the crypts at the base of the villi and migrate upward. d. acid entering the small intestine from the stomach constantly destroys the small intestinal lining, causing the cells to slough. e. none of these answers.