MALE REPRODUCTIVE SYSTEM: STRUCTURE, FUNCTION,
AND HORMONAL CONTROL |COMPLETE STUDY GUIDE
WITH 100% ACCURATE QUESTIONS &ANSWERS.
EXCELLENCE GUARANTEED.
What are the main components of the male genitourinary system? Answer: The paired gonads
(testes), genital ducts, accessory organs, and penis.
What is the primary function of the testes? Answer: To produce male sex hormones and male
germ cells.
What role do the internal accessory organs play in male reproduction? Answer: They produce
the fluid constituents of semen.
What is the function of the penis? Answer: Urine elimination and sexual function.
What determines the sex of a person at fertilization? Answer: Sex chromosomes.
What is the significance of the SRY gene in embryonic development? Answer: It differentiates
undifferentiated gonads into testes.
What hormones do testicular cells produce during male embryonic development? Answer: Anti-
müllerian hormone (AMH) and testosterone.
What does anti-müllerian hormone (AMH) do? Answer: Suppresses the müllerian ducts,
preventing the development of the uterus and fallopian tubes.
What does testosterone stimulate during embryonic development? Answer: Development of the
epididymis, vas deferens, and seminal vesicles from the wolffian ducts.
What is dihydrotestosterone (DHT) responsible for? Answer: Forming the male urethra,
prostate, and external genitalia.
1
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, What is the volume range of adult male testes? Answer: Approximately 15 to 25 mL.
What is the role of the cremaster muscle? Answer: To elevate the testes.
What are the two stages of testicular descent? Answer: First stage: descent to the inguinal region
(7-12 weeks). Second stage: descent into the scrotum (26th week).
What is an inguinal hernia? Answer: A protrusion of the parietal peritoneum and part of the
intestine through an abnormal opening from the abdominal cavity.
What is the tunica vaginalis? Answer: A double-layered membrane derived from the abdominal
peritoneum that encases the testes.
What is the tunica albuginea? Answer: A tough, white, fibrous sheath that protects the testes and
gives them their ovoid shape.
How do the pampiniform plexus and cremaster muscles help regulate testicular temperature?
Answer: The pampiniform plexus absorbs heat from arterial blood, while cremaster muscles
move the testes closer to the body in response to cold.
What happens to the dartos muscle when it is cold? Answer: It contracts, bringing the testes
closer to the body and causing the scrotum to become shorter and wrinkled.
What is the optimal temperature for sperm production? Answer: 2°C to 3°C below body
temperature.
What is spermatogenesis? Answer: The process of sperm cell development.
What are the functions of testosterone in the male reproductive system? Answer: Stimulates
spermatogenesis and development of male secondary sexual characteristics.
How does aging affect the male reproductive system? Answer: It leads to changes in hormone
levels and reproductive function.
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
AND HORMONAL CONTROL |COMPLETE STUDY GUIDE
WITH 100% ACCURATE QUESTIONS &ANSWERS.
EXCELLENCE GUARANTEED.
What are the main components of the male genitourinary system? Answer: The paired gonads
(testes), genital ducts, accessory organs, and penis.
What is the primary function of the testes? Answer: To produce male sex hormones and male
germ cells.
What role do the internal accessory organs play in male reproduction? Answer: They produce
the fluid constituents of semen.
What is the function of the penis? Answer: Urine elimination and sexual function.
What determines the sex of a person at fertilization? Answer: Sex chromosomes.
What is the significance of the SRY gene in embryonic development? Answer: It differentiates
undifferentiated gonads into testes.
What hormones do testicular cells produce during male embryonic development? Answer: Anti-
müllerian hormone (AMH) and testosterone.
What does anti-müllerian hormone (AMH) do? Answer: Suppresses the müllerian ducts,
preventing the development of the uterus and fallopian tubes.
What does testosterone stimulate during embryonic development? Answer: Development of the
epididymis, vas deferens, and seminal vesicles from the wolffian ducts.
What is dihydrotestosterone (DHT) responsible for? Answer: Forming the male urethra,
prostate, and external genitalia.
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, What is the volume range of adult male testes? Answer: Approximately 15 to 25 mL.
What is the role of the cremaster muscle? Answer: To elevate the testes.
What are the two stages of testicular descent? Answer: First stage: descent to the inguinal region
(7-12 weeks). Second stage: descent into the scrotum (26th week).
What is an inguinal hernia? Answer: A protrusion of the parietal peritoneum and part of the
intestine through an abnormal opening from the abdominal cavity.
What is the tunica vaginalis? Answer: A double-layered membrane derived from the abdominal
peritoneum that encases the testes.
What is the tunica albuginea? Answer: A tough, white, fibrous sheath that protects the testes and
gives them their ovoid shape.
How do the pampiniform plexus and cremaster muscles help regulate testicular temperature?
Answer: The pampiniform plexus absorbs heat from arterial blood, while cremaster muscles
move the testes closer to the body in response to cold.
What happens to the dartos muscle when it is cold? Answer: It contracts, bringing the testes
closer to the body and causing the scrotum to become shorter and wrinkled.
What is the optimal temperature for sperm production? Answer: 2°C to 3°C below body
temperature.
What is spermatogenesis? Answer: The process of sperm cell development.
What are the functions of testosterone in the male reproductive system? Answer: Stimulates
spermatogenesis and development of male secondary sexual characteristics.
How does aging affect the male reproductive system? Answer: It leads to changes in hormone
levels and reproductive function.
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
