Lab 7 - Male Reproduction Flashcards
what does the bulbourethral gland do
produced lubrication for the tip go the penis during mating and produced gel fraction (boar)
what does the disseminate prostate do
produce prostate fluid 20-30% of semen, alkaline
what happens to the sigmoid flexure of penis
it is straightened out when the penis is extended for mating
what is involved with sperm maturation
head of epididymis
body of epididymis
Where is sperm stored
tail of epididymis to acquire motility and fertility
what is the function of the testis
production of sperm and sex steroids
what is the function of ductus deferens
sperm transport into pre-ejaculatory ducts
where is urine stored
bladder
what does the ureter do
drains urine and sperm
what is the other place where semen is stored
ampulla
what is the other purpose of the ampulla
to secrete fluid - fructose, ergothioneine
what is the purpose of the vesicular gland
produce seminal plasma - 70% of semen volume
how much semen does the disseminate prostate produce
20-30%
alkaline
how much semen does the vesicular gland produce
70%
clear
slightly alkaline
what is the seminiferous tubules responsible for
sperm production and maintenance
what is the tunica vaginalis
a peritoneal sac
what does the tunica vaginalis do
protects and lubricates testes
what does the cavity of tunica vaginalis allow
movement
what is the tunica albuginea
protective layer that maintains blood flow, pressure and transport
what do Vas Deferens/ductus deferens do
carries sperm from epididymis to ejaculatory ducts
what are ductus efferentes responsible for
sperm transport and fluid reabsorption
what are the rete testis responsible for
sperm transport to epididymis via smooth muscle contractions
what occurs in the body of Epi
maturation of sperm
what occurs in the tail of Epididymis
storage of mature sperm
what is the pampiniform plexus key to
maintain temperature of arterial blood entering the testes below core (heat exchange system)
what do Sertoli cells do
produce inhibin B and APB
nourishment
where are sertoli cells
inside seminiferous tubules
what do leydig cells produce
testosterone
where are leydig cells located
outside of seminiferous tubules
what part of nervous system controls erection and ejaculation
acetylcholine
norepinephrine
what part of endocrine system controls erection and ejaculation
oxytocin
what are the 5 components of a reflex arc
receptor
sensory neuron
integration center
motor neuron
effector
what is the receptor
site of stimulus action
what does the sensory neuron do
transmits afferent impulses to CNS
what are the 2 types of integration centers
monosynaptic
polysynaptic
where are integration centres located
monosynaptic or polysynaptic regions within CNS
what do motor neurons do
conduct efferent impulses from integration center to effector organ
what is the effector
muscle fiber/gland cell that responds to efferent impulses by contracting or secreting
