Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
BNNS502 exam 2 Questions and Correct
Answers | Latest Update
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)
definition - the formation of sperm by meiosis
spermatogenic cells - produce sperm cells
sustentacular cells - nourish developing sperm
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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
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
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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
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
~ 1 ~ for inquiry mail me @
BNNS502 exam 2 Questions and Correct
Answers | Latest Update
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)
definition - the formation of sperm by meiosis
spermatogenic cells - produce sperm cells
sustentacular cells - nourish developing sperm
~ 1 ~ for inquiry mail me @
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
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
~ 1 ~ for inquiry mail me @
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
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
~ 1 ~ for inquiry mail me @
