Page 1 of 40 | © copyright 2024/2025 | Grade A+
BNNS502 exam 2 Questions & Verified Answers
2024-2025 | 100% Pass Rate Guaranteed |
Latest Updated Version
describe the location and function of the scrotum
- state the specific function of the cremaster & dartos muscles
Ans: 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
Master01 | Dec, 2024/2025 | Latest update
,Page 2 of 40 | © copyright 2024/2025 | Grade A+
Ans: 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)
Ans: 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
Ans: 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
Master01 | Dec, 2024/2025 | Latest update
,Page 3 of 40 | © copyright 2024/2025 | Grade A+
name the hormones involved in spermatogenesis beginning from the
hypothalamus
- state 3 functions of testosterone
Ans: 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
Ans: 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)
Master01 | Dec, 2024/2025 | Latest update
, Page 4 of 40 | © copyright 2024/2025 | Grade A+
Ans: transports sperm from the epididymis to the urethra by peristalsis
name the structures located in the spermatic cord
Ans: 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
Ans: 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
- explain why a male doesn't urinate during ejaculation
Master01 | Dec, 2024/2025 | Latest update
BNNS502 exam 2 Questions & Verified Answers
2024-2025 | 100% Pass Rate Guaranteed |
Latest Updated Version
describe the location and function of the scrotum
- state the specific function of the cremaster & dartos muscles
Ans: 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
Master01 | Dec, 2024/2025 | Latest update
,Page 2 of 40 | © copyright 2024/2025 | Grade A+
Ans: 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)
Ans: 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
Ans: 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
Master01 | Dec, 2024/2025 | Latest update
,Page 3 of 40 | © copyright 2024/2025 | Grade A+
name the hormones involved in spermatogenesis beginning from the
hypothalamus
- state 3 functions of testosterone
Ans: 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
Ans: 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)
Master01 | Dec, 2024/2025 | Latest update
, Page 4 of 40 | © copyright 2024/2025 | Grade A+
Ans: transports sperm from the epididymis to the urethra by peristalsis
name the structures located in the spermatic cord
Ans: 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
Ans: 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
- explain why a male doesn't urinate during ejaculation
Master01 | Dec, 2024/2025 | Latest update
