ANSWERS/NEWEST UPDATE!!!
Question 1
Which of the following is the primary site of sperm production within the testes?
A) Epididymis
B) Vas deferens
C) Seminiferous tubules
D) Seminal vesicles
E) Leydig cells
Correct Answer: C) Seminiferous tubules
Rationale: Spermatogenesis occurs specifically within the seminiferous tubules of the testes.
Leydig cells produce testosterone, while the epididymis is used for storage and maturation.
Question 2
What is the specific function of Leydig cells in the male reproductive system?
A) Supporting spermatogenesis directly
B) Secreting inhibin B to suppress FSH
C) Producing testosterone in response to LH
D) Forming the blood-testis barrier
E) Transporting sperm to the ejaculatory duct
Correct Answer: C) Producing testosterone in response to LH
Rationale: Leydig cells are located in the interstitial tissue between seminiferous tubules.
Their primary role is the endocrine production of testosterone, stimulated by Luteinizing
Hormone (LH).
Question 3
A nurse practitioner is educating a patient on sperm maturation. The patient should be informed
that sperm gain motility and the ability to fertilize an egg in which structure?
A) Rete testis
B) Epididymis
C) Vas deferens
D) Prostate gland
E) Urethra
Correct Answer: B) Epididymis
Rationale: While sperm are produced in the tubules, they are non-motile when they leave
the testes. They travel to the epididymis, where they undergo a maturation process lasting
approximately 2–3 weeks to gain motility.
Question 4
Which cell type is responsible for secreting inhibin B and providing structural and nutritional
support to developing sperm?
A) Leydig cells
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B) Sertoli cells
C) Spermatogonia
D) Theca cells
E) Granulosa cells
Correct Answer: B) Sertoli cells
Rationale: Sertoli cells are the "nurse" cells of the testes. They facilitate spermatogenesis,
form the blood-testis barrier, and secrete inhibin B, which provides negative feedback to
the pituitary to decrease FSH.
Question 5
During ejaculation, which structure is responsible for transporting sperm from the epididymis to
the ejaculatory duct?
A) Seminiferous tubules
B) Vas deferens
C) Bulbourethral gland
D) Ureters
E) Seminal vesicles
Correct Answer: B) Vas deferens
Rationale: The vas deferens (ductus deferens) is a muscular tube that uses peristaltic
contractions to propel sperm during the emission phase of ejaculation.
Question 6
The alkaline secretions from the seminal vesicles are vital for sperm survival because they:
A) Provide a low-pH environment
B) Contain fructose for energy and neutralize the acidic vaginal environment
C) Store sperm for up to six months
D) Trigger the LH surge in the female
E) Lubricate the glans penis
Correct Answer: B) Contain fructose for energy and neutralize the acidic vaginal
environment
Rationale: Seminal vesicles contribute about 60-70% of semen volume. Their secretions are
rich in fructose for sperm energy and are alkaline to protect sperm from the acidic
environment of the male urethra and female vagina.
Question 7
What is the primary role of the prostate gland in male reproduction?
A) Production of the majority of testosterone
B) Secretion of a thin, milky, enzyme-rich fluid that enhances sperm motility
C) Acting as the primary site of fertilization
D) Filtering urine from the semen
E) Producing oocytes
, 3
Correct Answer: B) Secretion of a thin, milky, enzyme-rich fluid that enhances sperm
motility
Rationale: Prostatic fluid contains citrate, calcium, and various enzymes (like PSA) that
help liquefy the semen and improve the functional capacity of sperm.
Question 8
Which gland produces the "pre-ejaculate" mucus that lubricates the urethra and neutralizes traces
of acidic urine?
A) Prostate gland
B) Seminal vesicles
C) Bulbourethral (Cowper's) glands
D) Adrenal glands
E) Pituitary gland
Correct Answer: C) Bulbourethral (Cowper's) glands
Rationale: Bulbourethral glands secrete a clear, slippery fluid into the urethra during sexual
arousal prior to ejaculation to prepare the pathway for sperm.
Question 9
Following the "SEVEn UP" mnemonic for the pathway of sperm, where does the sperm go
immediately after the Vas deferens?
A) Epididymis
B) Seminiferous tubules
C) Ejaculatory duct
D) Prostate
E) Urethra
Correct Answer: C) Ejaculatory duct
Rationale: The sequence is: Seminiferous tubules, Epididymis, Vas deferens, Ejaculatory
duct, (n-nothing), Urethra, Penis.
Question 10
Ejaculation occurs in two distinct phases. Which of the following describes the "emission"
phase?
A) The powerful rhythmic contraction of the bulbocavernosus muscle
B) The movement of sperm and glandular secretions into the ampulla of the vas deferens
C) The closure of the external urinary sphincter
D) The release of GnRH from the hypothalamus
E) The rapid drop in testosterone levels
Correct Answer: B) The movement of sperm and glandular secretions into the ampulla of
the vas deferens
Rationale: Emission is the first phase of ejaculation, controlled by the sympathetic nervous