Internal Genitalia Differentiation Flashcards
what renal systems does the embryo use during development
pronephros
mesonephros
metanephros
pronephros
- primitive form of urinary system
- regresses early
what renal system will lose function
mesonephros
what renal system will gain function after first trimester and get bigger
metanephros
mesonephros
- intermediate kidneys
- used during first trimester
metanephros
- adult kidneys
- become functional after first trimester
what is used as filtration during first trimester
mesonephros
what is the first thing has to be done before internal genitalia can develop
need to set kidneys in right spot
what develops into the female internal genitalia
paramesonephric duct
what is next to the mesonephric duct
paramesonephric duct
where do the internal genitalia go next to
gonads
what determine the type of uteri females have
fused paramesonephric ducts
where do the paramesonephric ducts fuse
caudal urogenital sinus
what are some of the main functions of the caudal urogenital sinus
- where repro and urine tracts exit
- gives rise to cervix in future
why does the paramesonephric duct regress in males
because they don’t have a uterus
how does the paramesonephric duct regress in males
through Sertoli cells
what hormone causes mesonephric duct differentiation
testosterone
what hormone is produced by Sertoli cells
AMH
in females, what ducts regress
mesonephric tubules
mesonephric ducts
in males, what ducts regress
paramesonephric ducts
what leads to the formation of oviduct, uterus, and cervix
paramesonephric ducts
in females, what does the urogenital sinus give rise to
vagina
urethra
in males, what does the urogenital sinus give rise to
prostate
bulbourethral glands
urethra
what do the mesonephric tubules give rise to in males
efferent ducts
