Urogen dev Flashcards
Intermediate mesoderm gives rise to
parts of
urinary and genital systems
intermediate mesoderm
glands and epi of teh urogenital system is made up of:
endoderm
Urogenital ridge gives rise to…
Nephrogenic cord (urinary system) Gonadal ridge (genital system)
Kidney developmemnt phases
PRONEPHROI
MESONEPHROI
METANEPHROI
Pronephroi
week 4, non functional and rudimentary
Mesonephroi
end of week 4 to end of first trimester
lowkey functions only for a hot sec
metane[phroi
adult kidney, early week 5- after birth
how pronephric duct is formed
poops off from intermediate mesoderm on each side of the embryo, then the tube is formed.
how mesonephric duct forms
as propheric duct degenerates, mesonephric duct forms, mesoneprhic tube and duct fuse and start to elongate to make teh glomerulus. also tube connects to cloaca
metanephroi formation
buds off the ureter(uretic bud), close to cloaca area, called metaneprhic mass. This then undergoes branching
What does uretic bud giev rise to
collecting duct system, also more specifically the nrophron
relocation of kidney
rotates and ascends
how is bladder formed?
urorectal septum divides cloaca into asshol and urogenital sinus
embrypnic origins of:
inside of UG tract
Outside
asshol
- endoderm
- splanchnic mesenchyme
- ectoderm
Trigone
Smooth triangular region on dorsal bladder wall, resulting
from the incorporation of distal parts of the mesonephric ducts.
