embryo stuff Flashcards
what makes a male after fertilization
males have a y chromosome so there is sry and TDF on yp11 . this differentiates the gonads into testis
why is TDF important
it acts on leydig cells in the testies to release testosterone which retains the mesonephric ducts. the testosterone is also broken down into 5 alpha reductase to the make DHT which forms penis, scrotum and prostate
what remains from the degeneration of the paramesonephic ducts
- utriculus prostaticus
2. appendix testis
what makes a female after fertilization
lack y chormosome so there is no TDF. this caues the mesonephric ducts to degerate and the paramesonephric ducts form the female reproductive system
what stimulates the paramesonephric ducts to form the rest of the vagina etc
estrogen
what remains after the degeneration of the mesonephric ducts
epoophoron and paroophoron within the mesonephrone
gartners duct in the upper vaginal wall
what is the maternal part of the placenta called and what are the 3 parts of it
decidua
basalis, capsularis, paritalis
what is the fetal part of the placenta called and what does it form
chorion frondosum . it forms the chorionic villi
what are the layers of cells of the placenta
synctiotrophoblasts,
cytotrophoblasts
extra embryonic mesoderm
where is the perineum located
below the levator ani muscles
go over the perineum lecture
now . you have notes on it !
where are glands located in males vs females
males = deep perineal space
females = superficial perineal space
