Embryology Flashcards
what part of embryo tissue is femal repro from?
intermediate mesoderm
what is the specific part of the intermediate mesoderm that forms majority of repro tract?
urogenital ridge
what cells at the urogenital rudge lead to testes and ovaries?
primordial germ cells
female tubes come from what structure?
paramesonephric duct
male tubes come from what structure?
mesonephric duct
what is another name for the paramesonephric duct?
Mullerian
what is another name for the mesonephric duct?
wolffian
explain how female to male change happens? what is the gene?
SRY gene on Y chromosome leas to formation of the semineferous tubules that then make anti mullerian hormone that destroys the paramesonephric ducts
the urogenital sinus leads to what in the female?
the distal vagina
the urogenital sinus leads to what in the male?
bladder and urethra
explain how the uterus forms, what week?
by week 10…2 oviducts are formed and come together in midline to form uterus and upper portion of the vagina then ductal walls dissolve
what is uterus didelphys?
failure of fusion…2 uteri
what is bicornuate uterus?
failure of dissolution of septum between two oviducts of uterus
what tract do ovaries follow as they descend?
follow the gubernaculum
what does the gubernaculum become in the female?
ovarian and round ligament
what week can you see external genitalia differences?
week 12
what is cryptopchordism?
testes fail to descend
what is a hydrocele?
fluid collection in space between parietal and visceral layer of the tunica vaginalis
what is a bifid scrotum?
failure of two lobes of scrotum to fuse together…lobes are called lumbosacral swellings
what leads to the ureter in embryo?
mesonephric duct
what leads to the bladder in embryo?
urogenital sinus
what leads to the urethra in embryo?
urogenital folds
what is hypospadias?
urethral opening in a male is on the ventral side of the penis instead of the dorsal
