CAPS 390 The Male Reproductive
System Questions and All Actual
Answers 2025-2026 Update.
What is a sperm composed of? - Answer The nucleus of a sperm holds tightly compact DNA.
The acrosome, a cap for the nucleus, is an exocytotic vesicle whose contents are released during
fertilization in the female reproductive tract. It releases enzymes that allow the sperm to reach
the egg by digesting its protective coating.
The nucleus and acrosome together form the head of the sperm.
The tail of the nucleus is the flagellum, which provides the sperm with its mobility for
movement in the female reproductive tract.
A sperm develops from a very general looking cell.
How many sperm are produced in a testis daily? - Answer 85 million of them per each testis
are produced daily during spermatogenesis.
What is the function of the male reproductive system? - Answer 1. The production of male
gametes (spermatozoa).
2. The transmission of gametes through the male duct system and into the female reproductive
tract.
What anatomical regions does the male reproductive system pass through? - Answer The
perineum, the abdomen and the pelvis.
A bony region separates the abdomen and the pelvis.
The perineum is separated from the pelvis by the muscular floor.
What is the path of movement of the testes during puberty? - Answer Testes and associated
ducts begin development in the posterior abdomen and secondarily descend into the
developing scrotum. It goes through the anterior abdominal wall down a tube like extension
that develops carrying coatings of the peritoneal cavity.
, What is the function of the testes? - Answer They are involved in the production of
morphologically differentiated gametes and the production of testosterone.
What is the function of the epididymis? - Answer It is involved in the physiological
maturation of spermatozoa and storage.
What is the function of the accessory glands? - Answer They are involved in the production
of a large fraction of the ejaculate.
What is the function of the penis? - Answer It is involved in the transmission of gametes into
the female reproductive tract. It is a vascular structure, where erection is a vascular event,
under control of the parasympathetic system.
What are the two major compartments of the testis? - Answer 1. An exocrine (germinal) part
called the seminiferous tubules, the site of sperm production.
2. An endocrine part called interstitial tissue (interstitial cells of Leydig), which are located
between the seminiferous tubules and are the site of testosterone production and secretion.
What are the two cell populations that compose the seminiferous tubules' seminiferous
epithelium? - Answer 1. Spermatogenic cells, the germ cell line that differentiate into
spermatozoa. This is a proliferative population.
2. Sertoli cells, somatic nurse cells that support spermatogenesis. They are sessile, not
undergoing mitotic divisions.
Spermatogenesis - Answer The 64 day process of the differentiation of spermatogenic cells
into mature sperm cells.
What are the phases of spermatogenesis? - Answer 1. Proliferative phase
(spermatocytogenesis), where initial sperm cells are dividing.
2. Meiosis, where the cell goes from diploid to haploid.
3. Spermiogenesis, where morphological differentiation of sperm cells occur.
What occurs during proliferative phase? - Answer Spermatogonia (early sperm cells which sit
on basal lamina in a spermatogonial stem cell niche below junction complexes between Sertoli
cells) undergo mitotic divisions to replenish the spermatogonial population, giving rise to
spermatocytes.
What occurs during meiosis phase? - Answer Spermatocytes (sperm cells which are
committed to meiosis) move off the basal lamina and genetic material is reduced by half, giving
rise to haploid spermatids.
System Questions and All Actual
Answers 2025-2026 Update.
What is a sperm composed of? - Answer The nucleus of a sperm holds tightly compact DNA.
The acrosome, a cap for the nucleus, is an exocytotic vesicle whose contents are released during
fertilization in the female reproductive tract. It releases enzymes that allow the sperm to reach
the egg by digesting its protective coating.
The nucleus and acrosome together form the head of the sperm.
The tail of the nucleus is the flagellum, which provides the sperm with its mobility for
movement in the female reproductive tract.
A sperm develops from a very general looking cell.
How many sperm are produced in a testis daily? - Answer 85 million of them per each testis
are produced daily during spermatogenesis.
What is the function of the male reproductive system? - Answer 1. The production of male
gametes (spermatozoa).
2. The transmission of gametes through the male duct system and into the female reproductive
tract.
What anatomical regions does the male reproductive system pass through? - Answer The
perineum, the abdomen and the pelvis.
A bony region separates the abdomen and the pelvis.
The perineum is separated from the pelvis by the muscular floor.
What is the path of movement of the testes during puberty? - Answer Testes and associated
ducts begin development in the posterior abdomen and secondarily descend into the
developing scrotum. It goes through the anterior abdominal wall down a tube like extension
that develops carrying coatings of the peritoneal cavity.
, What is the function of the testes? - Answer They are involved in the production of
morphologically differentiated gametes and the production of testosterone.
What is the function of the epididymis? - Answer It is involved in the physiological
maturation of spermatozoa and storage.
What is the function of the accessory glands? - Answer They are involved in the production
of a large fraction of the ejaculate.
What is the function of the penis? - Answer It is involved in the transmission of gametes into
the female reproductive tract. It is a vascular structure, where erection is a vascular event,
under control of the parasympathetic system.
What are the two major compartments of the testis? - Answer 1. An exocrine (germinal) part
called the seminiferous tubules, the site of sperm production.
2. An endocrine part called interstitial tissue (interstitial cells of Leydig), which are located
between the seminiferous tubules and are the site of testosterone production and secretion.
What are the two cell populations that compose the seminiferous tubules' seminiferous
epithelium? - Answer 1. Spermatogenic cells, the germ cell line that differentiate into
spermatozoa. This is a proliferative population.
2. Sertoli cells, somatic nurse cells that support spermatogenesis. They are sessile, not
undergoing mitotic divisions.
Spermatogenesis - Answer The 64 day process of the differentiation of spermatogenic cells
into mature sperm cells.
What are the phases of spermatogenesis? - Answer 1. Proliferative phase
(spermatocytogenesis), where initial sperm cells are dividing.
2. Meiosis, where the cell goes from diploid to haploid.
3. Spermiogenesis, where morphological differentiation of sperm cells occur.
What occurs during proliferative phase? - Answer Spermatogonia (early sperm cells which sit
on basal lamina in a spermatogonial stem cell niche below junction complexes between Sertoli
cells) undergo mitotic divisions to replenish the spermatogonial population, giving rise to
spermatocytes.
What occurs during meiosis phase? - Answer Spermatocytes (sperm cells which are
committed to meiosis) move off the basal lamina and genetic material is reduced by half, giving
rise to haploid spermatids.
