Top Mark Questions and Correct Verified Answers
BNNS502 exam 2 Questions and Correct
Verified Answers
describe the location and function of the scrotum
- state the specific function of the cremaster & dartos muscles
✓ location - outside of the pelvic cavity at the root of the penis
✓ function - regulate the temperature of the testes
✓ cremaster - is a muscle that pulls testes closer to the pelvic floor (to the warmth
of the body) in cold conditions
✓ dartos muscles - are muscles that contracts & wrinkles the scrotum (decreasing
surface area for heat loss) in cold conditions
state the 3 functions of the Sustentacular (Sertoli) cells
✓ 1. supports & provides nutrients for cells while they undergo meiosis & develop
into sperm
✓ 2. produce testicular fluid for transport of sperm
✓ 3. control release of sperm into lumen of the seminiferous tubule
define spermatogenesis (include the specific cells)
Top Mark !!!
, Top Mark Questions and Correct Verified Answers
✓ definition - the formation of sperm by meiosis
✓ spermatogenic cells - produce sperm cells
✓ sustentacular cells - nourish developing sperm
✓ interstitial cells - secrete testosterone
describe the specific functions of the acrosome, mitochondria & tail of the sperm cell
✓ acrosome - cap-like vesicle containing enzymes to help sperm penetrate the
secondary oocyte
✓ midpiece - contains mitochondria which provide energy so the tail can propel the
sperm
✓ tail - propels the sperm
name the hormones involved in spermatogenesis beginning from the hypothalamus
- state 3 functions of testosterone
✓ hypothalamus - increases secretion of GnRH
✓ GnRH - stimulates anterior pituitary to secrete LH & FSH
✓ LH - stimulates interstitial cells to secrete testosterone
✓ FSH - stimulates spermatogenesis
✓ testosterone - controls the growth, development, functioning, & maintenance
of sex organs, stimulates development of male secondary sex characteristics
during puberty, & stimulates sperm maturation, bone growth, & protein
synthesis
describe the location of and 3 functions of the epididymis
Top Mark !!!
, Top Mark Questions and Correct Verified Answers
✓ 1. site for sperm to mature & gain mobility
✓ 2. stores sperm
✓ 3. propels sperm into ductus deferens
state the function of the Ductus (vas) deferens)
✓ transports sperm from the epididymis to the urethra by peristalsis
name the structures located in the spermatic cord
✓ testicular blood vessels, autonomic nerves, lymphatic vessels, ductus deferens,
& cremaster muscle
describe the location and state the function of; the seminal vesicles, the ejaculatory
duct, the prostate gland, and the bulbourethral glands
✓ seminal vesicles - along the back of the bladder, add alkaline viscous fluid to
sperm
✓ ejaculatory duct - superior aspect of the prostate gland, ejects sperm & seminal
vesicle secretions into the urethra
✓ prostate gland - encircles urethra & just inferior to the urinary bladder, contracts
during ejaculation squeezing glandular secretions into the urethra
✓ bulbourethral glands - beneath the prostate gland & beginning of the penis,
produces an alkaline mucus that drains into the urethra & lubricates the male
urethra
describe the function of the urethra
Top Mark !!!
BNNS502 exam 2 Questions and Correct
Verified Answers
describe the location and function of the scrotum
- state the specific function of the cremaster & dartos muscles
✓ location - outside of the pelvic cavity at the root of the penis
✓ function - regulate the temperature of the testes
✓ cremaster - is a muscle that pulls testes closer to the pelvic floor (to the warmth
of the body) in cold conditions
✓ dartos muscles - are muscles that contracts & wrinkles the scrotum (decreasing
surface area for heat loss) in cold conditions
state the 3 functions of the Sustentacular (Sertoli) cells
✓ 1. supports & provides nutrients for cells while they undergo meiosis & develop
into sperm
✓ 2. produce testicular fluid for transport of sperm
✓ 3. control release of sperm into lumen of the seminiferous tubule
define spermatogenesis (include the specific cells)
Top Mark !!!
, Top Mark Questions and Correct Verified Answers
✓ definition - the formation of sperm by meiosis
✓ spermatogenic cells - produce sperm cells
✓ sustentacular cells - nourish developing sperm
✓ interstitial cells - secrete testosterone
describe the specific functions of the acrosome, mitochondria & tail of the sperm cell
✓ acrosome - cap-like vesicle containing enzymes to help sperm penetrate the
secondary oocyte
✓ midpiece - contains mitochondria which provide energy so the tail can propel the
sperm
✓ tail - propels the sperm
name the hormones involved in spermatogenesis beginning from the hypothalamus
- state 3 functions of testosterone
✓ hypothalamus - increases secretion of GnRH
✓ GnRH - stimulates anterior pituitary to secrete LH & FSH
✓ LH - stimulates interstitial cells to secrete testosterone
✓ FSH - stimulates spermatogenesis
✓ testosterone - controls the growth, development, functioning, & maintenance
of sex organs, stimulates development of male secondary sex characteristics
during puberty, & stimulates sperm maturation, bone growth, & protein
synthesis
describe the location of and 3 functions of the epididymis
Top Mark !!!
, Top Mark Questions and Correct Verified Answers
✓ 1. site for sperm to mature & gain mobility
✓ 2. stores sperm
✓ 3. propels sperm into ductus deferens
state the function of the Ductus (vas) deferens)
✓ transports sperm from the epididymis to the urethra by peristalsis
name the structures located in the spermatic cord
✓ testicular blood vessels, autonomic nerves, lymphatic vessels, ductus deferens,
& cremaster muscle
describe the location and state the function of; the seminal vesicles, the ejaculatory
duct, the prostate gland, and the bulbourethral glands
✓ seminal vesicles - along the back of the bladder, add alkaline viscous fluid to
sperm
✓ ejaculatory duct - superior aspect of the prostate gland, ejects sperm & seminal
vesicle secretions into the urethra
✓ prostate gland - encircles urethra & just inferior to the urinary bladder, contracts
during ejaculation squeezing glandular secretions into the urethra
✓ bulbourethral glands - beneath the prostate gland & beginning of the penis,
produces an alkaline mucus that drains into the urethra & lubricates the male
urethra
describe the function of the urethra
Top Mark !!!
