,BIOL 252 Module 9 Exam | Human Anatomy &
Physiology II w/Lab Exam Q&A | Portage Learning
1. The primary male gonads responsible for sperm and testosterone production
are the:
A) Bulbourethral glands
B) Seminal vesicles
C) Testes
D) Prostate gland
Correct Answer: C) Testes
Rationale: The testes are the male reproductive organs that produce sperm
(spermatogenesis) within the seminiferous tubules and secrete testosterone
from interstitial Leydig cells. The other options are accessory glands that
contribute to semen but do not produce sperm.
2. Sperm production specifically occurs in which structure?
A) Epididymis
B) Vas deferens
C) Seminiferous tubules
D) Ejaculatory duct
Correct Answer: C) Seminiferous tubules
,Rationale: The highly coiled seminiferous tubules within the testes are the site
of spermatogenesis. The epididymis stores and matures sperm, while the vas
deferens and ejaculatory duct are transport pathways.
3. Which cells in the testes are responsible for producing testosterone?
A) Leydig cells
B) Sertoli cells
C) Spermatogonia
D) Myoid cells
Correct Answer: A) Leydig cells
Rationale: Leydig (interstitial) cells, located between seminiferous tubules,
secrete testosterone in response to luteinizing hormone (LH). Sertoli cells
support developing sperm and form the blood‑testis barrier.
4. The function of Sertoli cells in the seminiferous tubules is to:
A) Secrete testosterone
B) Produce sperm
C) Nourish developing sperm and form the blood‑testis barrier
D) Propel sperm through the ductus deferens
Correct Answer: C) Nourish developing sperm and form the blood‑testis barrier
, Rationale: Sertoli (sustentacular) cells provide structural and metabolic support
for developing spermatogenic cells. Tight junctions between them create the
blood‑testis barrier, protecting haploid sperm from immune attack.
5. After leaving the seminiferous tubules, sperm are transported to the:
A) Vas deferens
B) Urethra
C) Prostate
D) Epididymis
Correct Answer: D) Epididymis
Rationale: Sperm exit the seminiferous tubules via the straight tubules and rete
testis, then enter the epididymis, a coiled tube on the posterior testis where
they undergo maturation and become motile.
6. The correct order of the sperm transport pathway from production to
ejaculation is:
A) Seminiferous tubules → vas deferens → epididymis → urethra
B) Seminiferous tubules → epididymis → vas deferens → ejaculatory duct →
urethra
C) Epididymis → seminiferous tubules → vas deferens → urethra
D) Vas deferens → seminiferous tubules → epididymis → ejaculatory duct →
urethra
Correct Answer: B) Seminiferous tubules → epididymis → vas deferens →
ejaculatory duct → urethra
Physiology II w/Lab Exam Q&A | Portage Learning
1. The primary male gonads responsible for sperm and testosterone production
are the:
A) Bulbourethral glands
B) Seminal vesicles
C) Testes
D) Prostate gland
Correct Answer: C) Testes
Rationale: The testes are the male reproductive organs that produce sperm
(spermatogenesis) within the seminiferous tubules and secrete testosterone
from interstitial Leydig cells. The other options are accessory glands that
contribute to semen but do not produce sperm.
2. Sperm production specifically occurs in which structure?
A) Epididymis
B) Vas deferens
C) Seminiferous tubules
D) Ejaculatory duct
Correct Answer: C) Seminiferous tubules
,Rationale: The highly coiled seminiferous tubules within the testes are the site
of spermatogenesis. The epididymis stores and matures sperm, while the vas
deferens and ejaculatory duct are transport pathways.
3. Which cells in the testes are responsible for producing testosterone?
A) Leydig cells
B) Sertoli cells
C) Spermatogonia
D) Myoid cells
Correct Answer: A) Leydig cells
Rationale: Leydig (interstitial) cells, located between seminiferous tubules,
secrete testosterone in response to luteinizing hormone (LH). Sertoli cells
support developing sperm and form the blood‑testis barrier.
4. The function of Sertoli cells in the seminiferous tubules is to:
A) Secrete testosterone
B) Produce sperm
C) Nourish developing sperm and form the blood‑testis barrier
D) Propel sperm through the ductus deferens
Correct Answer: C) Nourish developing sperm and form the blood‑testis barrier
, Rationale: Sertoli (sustentacular) cells provide structural and metabolic support
for developing spermatogenic cells. Tight junctions between them create the
blood‑testis barrier, protecting haploid sperm from immune attack.
5. After leaving the seminiferous tubules, sperm are transported to the:
A) Vas deferens
B) Urethra
C) Prostate
D) Epididymis
Correct Answer: D) Epididymis
Rationale: Sperm exit the seminiferous tubules via the straight tubules and rete
testis, then enter the epididymis, a coiled tube on the posterior testis where
they undergo maturation and become motile.
6. The correct order of the sperm transport pathway from production to
ejaculation is:
A) Seminiferous tubules → vas deferens → epididymis → urethra
B) Seminiferous tubules → epididymis → vas deferens → ejaculatory duct →
urethra
C) Epididymis → seminiferous tubules → vas deferens → urethra
D) Vas deferens → seminiferous tubules → epididymis → ejaculatory duct →
urethra
Correct Answer: B) Seminiferous tubules → epididymis → vas deferens →
ejaculatory duct → urethra
