,BIOL252/BIOL 252 Human Anatomy & Physiology II w/Lab
Module 9 Exam | Portage Learning | 2026 Edition (PDF)
1. The primary male reproductive organ that produces sperm and testosterone is the:
A) Epididymis
B) Vas deferens
C) Testis (testicle)
D) Prostate gland
Correct Answer: Testis (testicle)
Rationale: The testes are the primary male reproductive organs. They produce sperm (spermatogenesis)
in the seminiferous tubules and secrete testosterone from the interstitial cells (Leydig cells). The
epididymis stores and matures sperm, the vas deferens transports sperm, and the prostate gland
produces seminal fluid.
2. Sperm production occurs in which structure of the testis?
A) Epididymis
B) Seminiferous tubules
C) Vas deferens
D) Ejaculatory duct
Correct Answer: Seminiferous tubules
Rationale: Spermatogenesis occurs in the seminiferous tubules of the testes. These tightly coiled tubules
contain the germ cells that undergo meiosis to produce sperm. The epididymis is where sperm mature
and are stored.
3. Which cells in the testes produce testosterone?
A) Sertoli cells
B) Leydig cells (interstitial cells)
,C) Spermatogonia
D) Spermatids
Correct Answer: Leydig cells (interstitial cells)
Rationale: Leydig cells, located in the interstitial tissue between the seminiferous tubules, are
responsible for testosterone production. Testosterone is essential for male secondary sex
characteristics, spermatogenesis, and libido. Sertoli cells nourish developing sperm.
4. Which of the following correctly describes the path of sperm from production to ejaculation?
A) Seminiferous tubules → epididymis → vas deferens → ejaculatory duct → urethra
B) Seminiferous tubules → vas deferens → epididymis → ejaculatory duct → urethra
C) Epididymis → seminiferous tubules → vas deferens → ejaculatory duct → urethra
D) Seminiferous tubules → epididymis → ejaculatory duct → vas deferens → urethra
Correct Answer: Seminiferous tubules → epididymis → vas deferens → ejaculatory duct → urethra
Rationale: Sperm are produced in the seminiferous tubules, then travel to the epididymis for maturation
and storage. During ejaculation, they move through the vas deferens, the ejaculatory duct, and finally
the urethra to exit the body.
5. What is the outer fibrous capsule that surrounds each testis?
A) Tunica vaginalis
B) Tunica albuginea
C) Septa
D) Pampiniform plexus
Correct Answer: Tunica albuginea
, Rationale: The tunica albuginea is the dense fibrous outer capsule that surrounds each testis, providing
protection and structure. The tunica vaginalis is a serous membrane, septa are extensions of the capsule
that divide the testis, and the pampiniform plexus is a network of veins.
6. Which of the following correctly lists the sequence of sperm maturation and storage?
A) Spermatogonium → spermatocyte → spermatid → spermatozoon
B) Spermatogonium → spermatid → spermatocyte → spermatozoon
C) Spermatocyte → spermatogonium → spermatid → spermatozoon
D) Spermatid → spermatocyte → spermatogonium → spermatozoon
Correct Answer: Spermatogonium → spermatocyte → spermatid → spermatozoon
Rationale: Spermatogenesis follows this sequence: spermatogonia (diploid stem cells) undergo meiosis
to form primary and secondary spermatocytes, which become spermatids (haploid), and finally
differentiate into mature spermatozoa (sperm).
7. The rete testis is a network of tubules at the hilum that:
A) Produces sperm
B) Stores sperm
C) Collects sperm from the seminiferous tubules
D) Secretes seminal fluid
Correct Answer: Collects sperm from the seminiferous tubules
Rationale: The rete testis is a network of tubules located at the hilum of the testicle that receives sperm
from the seminiferous tubules and transports them to the efferent ductules. Sperm production occurs in
the seminiferous tubules, and storage occurs in the epididymis.
8. Which structure sits on top of the testis where sperm undergo maturation and are stored?
A) Seminiferous tubules
B) Rete testis
Module 9 Exam | Portage Learning | 2026 Edition (PDF)
1. The primary male reproductive organ that produces sperm and testosterone is the:
A) Epididymis
B) Vas deferens
C) Testis (testicle)
D) Prostate gland
Correct Answer: Testis (testicle)
Rationale: The testes are the primary male reproductive organs. They produce sperm (spermatogenesis)
in the seminiferous tubules and secrete testosterone from the interstitial cells (Leydig cells). The
epididymis stores and matures sperm, the vas deferens transports sperm, and the prostate gland
produces seminal fluid.
2. Sperm production occurs in which structure of the testis?
A) Epididymis
B) Seminiferous tubules
C) Vas deferens
D) Ejaculatory duct
Correct Answer: Seminiferous tubules
Rationale: Spermatogenesis occurs in the seminiferous tubules of the testes. These tightly coiled tubules
contain the germ cells that undergo meiosis to produce sperm. The epididymis is where sperm mature
and are stored.
3. Which cells in the testes produce testosterone?
A) Sertoli cells
B) Leydig cells (interstitial cells)
,C) Spermatogonia
D) Spermatids
Correct Answer: Leydig cells (interstitial cells)
Rationale: Leydig cells, located in the interstitial tissue between the seminiferous tubules, are
responsible for testosterone production. Testosterone is essential for male secondary sex
characteristics, spermatogenesis, and libido. Sertoli cells nourish developing sperm.
4. Which of the following correctly describes the path of sperm from production to ejaculation?
A) Seminiferous tubules → epididymis → vas deferens → ejaculatory duct → urethra
B) Seminiferous tubules → vas deferens → epididymis → ejaculatory duct → urethra
C) Epididymis → seminiferous tubules → vas deferens → ejaculatory duct → urethra
D) Seminiferous tubules → epididymis → ejaculatory duct → vas deferens → urethra
Correct Answer: Seminiferous tubules → epididymis → vas deferens → ejaculatory duct → urethra
Rationale: Sperm are produced in the seminiferous tubules, then travel to the epididymis for maturation
and storage. During ejaculation, they move through the vas deferens, the ejaculatory duct, and finally
the urethra to exit the body.
5. What is the outer fibrous capsule that surrounds each testis?
A) Tunica vaginalis
B) Tunica albuginea
C) Septa
D) Pampiniform plexus
Correct Answer: Tunica albuginea
, Rationale: The tunica albuginea is the dense fibrous outer capsule that surrounds each testis, providing
protection and structure. The tunica vaginalis is a serous membrane, septa are extensions of the capsule
that divide the testis, and the pampiniform plexus is a network of veins.
6. Which of the following correctly lists the sequence of sperm maturation and storage?
A) Spermatogonium → spermatocyte → spermatid → spermatozoon
B) Spermatogonium → spermatid → spermatocyte → spermatozoon
C) Spermatocyte → spermatogonium → spermatid → spermatozoon
D) Spermatid → spermatocyte → spermatogonium → spermatozoon
Correct Answer: Spermatogonium → spermatocyte → spermatid → spermatozoon
Rationale: Spermatogenesis follows this sequence: spermatogonia (diploid stem cells) undergo meiosis
to form primary and secondary spermatocytes, which become spermatids (haploid), and finally
differentiate into mature spermatozoa (sperm).
7. The rete testis is a network of tubules at the hilum that:
A) Produces sperm
B) Stores sperm
C) Collects sperm from the seminiferous tubules
D) Secretes seminal fluid
Correct Answer: Collects sperm from the seminiferous tubules
Rationale: The rete testis is a network of tubules located at the hilum of the testicle that receives sperm
from the seminiferous tubules and transports them to the efferent ductules. Sperm production occurs in
the seminiferous tubules, and storage occurs in the epididymis.
8. Which structure sits on top of the testis where sperm undergo maturation and are stored?
A) Seminiferous tubules
B) Rete testis
