male reproctive Flashcards
what is the mediastinum testis
a thickening of the tunica albigenia where the epididymus attaches and where blood nerves and lymph enter and exit the testes
how long does it take for spermatogensis
86 days
what covers the testis
the tunica albeginea made of dense irregular CT
what does the mediastimun deivide the tests into
lobuli testis 250
what is the tunica vasculosa
loose ct deep to the albinguea has a rich supply of vascular capsule
what are the lobuli testis
each contains 1-4 seminiferous tubules where sperm mature and contain the leydig cells, and loose ct stroma as filler tissue
what does the lydig interstitial cells do
they are the site of the testosterone formation
what is the vascular supply of the testis
testicular artery, pampinform plexus of veins, and the artery veins of the ductus deferens from the spermatic cord through inguinal canal
what does the tunica propia of the seminiferous tubules do
thin CT mylooid cells that contract to produce peristatli waves to move the spermatazoa thorugh the tubes
what is the sertolid cells do
they are the nurse cells that give needed nutrients to the spermatozoa and they are bound by occludess junctions seperate into the basal and luminal compartment. This creates the Blood testis barrier that protects the sperm from the immune system
what is the seminiferous epithelium or germinal do
they have spermatogenic cells that will become sperms or the the sertoli cells that will become the nurse cells
what type of cells are in the luminal compartment
spermatozoa secondary and primary spermatozoa
what is located in the basal epithielia compartment
location fo the BTB and the early spermatogonia
what are the stages of the sperm development
spermatogonia primary and secondary spermatocytes, spermaids and then spermazoa
spermatogonia have what type of chromosones
2N2D
