MALE REPRODUCTION Flashcards
list the structures in the spermatic ducts
- epididymis
- ductus deferens
- ejaculatory ducts
list the structures in the accessory sex glands
- seminal vesicles
- prostate
- bulbourethral glands
list the structures in external genitalia
penis scrotum
function of male repro system
- spermatogenesis
- production of seminal fluids
- steroidogenesis
- sex
what is testes site of
spermatogenesis
steroidogenesis
what temp is required for spermatogenesi
2-3 degrees
list the layers of testes
- tunica vaginalis
- tunica albuginea
- tunica vasculosa
what is tunica vaginalis reminent of
peritoneum
what lines testes
serous membranes and interior of scrotum
what does tunica vaginalis produce
serous fluids to reduce friction
list the layers of tunica vaginalis
parietal layer
visceral layer
list the lobule of testes
seminiferous tubules
what is seminiferous tubules site of
spermatogenesis
what is in the connective tissue stroma
leydig cells
what is leydig cells site fo
steroidogenesis
spermatogenic epithelium
contains sertoli cells and spermatogenic cells
what type orf cells are myoid cells
contractile cells
what are sertoli cells
supporting cells - true epithelium
what do spermatogenic cells undergo
spermatognesis to turn into mature sperm
where do spermatogenic cells migrate towards once they mature
lumen
what does spermatogenesis process consists of
mitosis, meiosis and spermiogeneis
what is the final differentiaon in sperm
spermiogenesis > final differentiation from round cells into mature sperm
where do spermatogonia cells sit on
basal lamina of seminiferous tubules
how many types of spermatogonia
TYPE A: DARK AND LIGHT
TYPE B
what is the type A dark cells in spermatogonia
stem cell reserve
- mitosis to replace themselves and maintain stem cell reserve
what is light in type a cells
renewing stem cells
committed to differentiate but first undergo mitotic divisiosn to increase number
type b in spermatogonia
last step in spermatogonial phase
what do type b spermatogonia undergo
meiosis
to produce primary spermatocytes
what do type b spermatogonia immediately replicate and for how long
DNA
and enter prophase I of meiosis in22 days
after type b spermatogonia undergo first meiotic division to become
primary
spermatocytes
do secondary spermatocytes replicate dna
no as they immediately enter prophase II of meiosis