Developement Of Genital System Flashcards
Where do primordial germ cells migrate from?
The hindgut
What is responsible for sex determination?
The SRY gene on the Y chromosome
Where do the primordial germ cells embed in the indifferent stage?
In the primitive sex cords
Where does the outer covering of the tested develop from?
Tunica albuginea
What do germ cells turn into?
Spermatozoa
What do the black epithelia around the germ cells turn into?
Sertoli cells
What happens to the primitive sex chords after the indifferent stage, in female development?
They degenerate
Then get a second round of development- get new cortical cords
Make primordial germ cells
What happens to the paramesonephric duct in males?
It disappears
What happens to the paramesonephric duct in females?
Contributes to uterine tubes & uterus
What happens to the mesonephric duct in males?
Forms the ductus deferens
What happens to the mesonephric duct in females?
It disappears
What does the SRY gene control the production of?
MIS
Testosterone
What causes the regression of the PM duct in males?
MIS
Mullerian inhibiting substance
What causes virilisation of mesonephric duct in males?
Testosterone
What forms the penile urethra?
Urethral folds
