Exam - Male Repro: General Anatomy Flashcards
what is the main function of male reproductive organs
to produce and deliver spermatozoa to the female
what is key for the male reproductive system
temperature control
what is the temperature that testes must be kept for spermatogenesis
4-6C below
what is required during the late part of gestation or early life
testicular decent via the inguinal canal
what is temperature controlled by later in life
the veins of the pampiniform plexus
what does the pampiniform plexus form
countercurrent heat exchanger
where is the pampiniform plexus
the spermatic cord
where are the testes located
the scrotum
what is the scrotum
skin sac from the abdominal cavity with a layer of smooth muscle
what is the layer of smooth muscle on scrotum
tunica dartos
what is in the inside of the scrotum
layers of connective tissue
what are the layers of connective tissue called in the scrotum
scrota fascia
parietal vaginal tunic
what covers the scrotum
a layer of vascularized connective tissue
what are the vascularized connective tissue that cover the testes
tunica albuginae
visceral vaginal tunic
what does the layer of vascularized connective tissue covering the testes project
septa in the tests
what covers the septa
smooth muscles to help move immature sperms
what are the 2 major parts inside the testes
seminiferous tubules
interstitium
what are the seminiferous tubules the site of
sperm production
what are the seminiferous tubules
ducts collect sperm to rete testis in the center –> tubes that bring the sperm to the epididymis
what is the interstitium composed of
connective tissue
nerve
blood vessels
leydig cells
what do leydig cells produce
testosterone
what are the boar testis structure similar to
the bull
difference between bull and boar testies
the boar has more pronounced interstitium
why is the boar intersitium more pronounced than the bulls
Leydig cells produce a wider array of androgens, C16, C19 steroids plus estrogens
what is a consequence of the boar testes location
it is against the abdominal cavity of which reduced the efficiency of heat exchange
why do boars have a large volume
large seminal vesicles
what do the bulbo-urethral glands in boars produce
gel
why do bulbs-urethral glands in boars produce gel
they are large
characteristics of boar ejaculation
copious ejaculate and prolonged ejaculation
do boars have smaller or larger sperm reserves compared to bulls
smaller
