Anatomy of Reproductive Organs Flashcards
3 External Structures of male reproductive organs
penis
scrotum
testes
male organ of copulation
1.Penis
penis shaft consists of three cylindrical masses of erectile tissue
Corpus cavernosa
Corpus spongiosum
Glans penis
2 lateral columns of erectile tissue
Corpus cavernosa
encases the urethra
Corpus spongiosum
cone shaped expansion of corpus spongiosum that is highly sensitive in males
Glans penis
pathophysiology of sexual excitement
nitric oxide is released from the endothelium of blood vessels.➜This causes dilation and an increase in blood flow to the arteries of the penis (engorgement)
pouch hanging below the penis that contains the testes.
- Scrotum
functions are to support the testes and help regulate the temperature of sperm.
- Scrotum
give hormones that testes produces and what triggers it
➜FSH= of androgen-binding protein (ABP) = spermatogenesis
➜LH =release of testosterone from the testes.
ABP + testosterone
promote sperm formation
what happens when testoterone increases?
slows production of FSH and LH ➜ low sperm production
give 7 internal structures of male repro
- Epididymis
- Vas Deferens (Ductus Deferens)
- Seminal Vesicles
- Ejaculatory ducts
- Prostate gland
- The Bulbourethral Glands (Cowper’s)
- Urethra
resorvoir for sperm storage and maturation
epididymis
function of epididymis
resorvoir for sperm storage and maturation
how many feet epididymis
20ft
how many days does it take for sperm to travel the length of the epididymis
12 to 20 days
how many days does it take for sperm to reach maturity
65 to 75 days
aspermia
absence of sperm
oligospermia
fewer than 20 million sperm per milliliter
months to treat aspermia oligospermia
2 months
providing a passageway for sperm.
Vas Deferens (Ductus Deferens)
duct extending from epididymis tot the ejaculatoty duct and seminal vesicle,
Vas Deferens (Ductus Deferens)
Sperm matures as thy pass through here
Vas Deferens (Ductus Deferens)
canal formed by the union of the vas deferens and the excretory duct of the seminal vesicle, which enters the urethra at the prostate gland
Ejaculatory ducts
