Sperm are produced in the _____ and complete maturation in the _____.
A. epididymis; testes
B. ductus deferens; epididymis
C. seminiferous tubules; prostate gland
D. seminiferous tubules; epididymis
E. seminiferous tubules; vas deferens
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Question 2) The sustentacular cells
A. mature to form sperm cells.
B. produce testosterone.
C. provide nourishment for development of sperm.
D. cover and protect most of the testes.
E. produce seminal fluid.
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Question 3) Which of the following cell types is diploid?
A. spermatid
B. mature sperm
C. primary spermatocyte
D. secondary spermatocyte
E. spermatozoa
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Question 4) Which of the following substances found in sustentacular cells may be the active hormones that promote sperm cell formation?
A. IgA and IgG
B. sustentaculum and gubernaculum
C. dihydrotestosterone and estrogen
D. androgen-binding protein and testosterone
E. estrogen and progesterone
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Question 5) The blood-testis barrier
A. feeds sustentacular cells.
B. keeps blood from engorging the testis.
C. is formed by the primary spermatocytes.
D. isolates sperm cells from the immune system.
E. nourishes the developing spermatozoa.
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Question 6) Which of the following cell types is formed at the end of the first meiotic division?
A. spermatid
B. spermatogonia
C. primary spermatocyte
D. secondary spermatocyte
E. spermatozoa
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Question 7) Male infants can be born with an undescended testis. This means that the testis
A. lacks hormonal cells.
B. covers the top of the scrotum.
C. has lost its blood supply.
D. remains in the abdominopelvic cavity.
E. has not properly formed.
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Question 8) The thick white capsule that covers each testes is called the
A. raphe.
B. tunica adventitia.
C. tunica albuginea.
D. Leydig capsule.
E. tunica alba.
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Question 9) The interstitial cells or Leydig cells
A. produce sperm.
B. form the wall of the rete testis.
C. cover the testis with a white tunic.
D. secrete seminal fluid.
E. secrete testosterone.
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Question 10) The opening in the abdominal wall through which the testes descend is the
A. spermatic cord.
B. gubernaculum.
C. inguinal canal.
D. process vaginalis.
E. perineal opening.
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