Urogenital Flashcards
(31 cards)
Urogenital system derives from?
Intermediate mesoderm
Urinary system derives from?
Intermediate mesoderm
Development of kidney: where is pronephros located?
upper cervical
When does pronephros start developing?
End of week 3
When does pronephros end development?
End of week 4
Where is mesonephros development located?
thoracic and lumbar (T1-L3)
When does mesonephros start developing?
Late in week 4
When does mesonephros end development?
End of week 8
Where is meTanephros development located?
sacral
When does meTanephros development begin?
Beginning of week 5
When does meTanephros development end?
Permanent Kidney
What persists from the pronephros?
pronephros duct
What happens to the pronephros duct?
drains into meSonephros duct
What is another name for the meSonephros duct?
2nd set of kidneys
Wolffian duct
What direction are the kidneys forming?
cranial to caudal
what is vestigial?
just there; not necessary
ie: vestigial pronephric system
where does the mesonephric duct drain?
cloaca
where does the ureteric bud derive from?
mesonephric duct
what does the mesonephric duct consist of?
- glomerulus
2. excretory tubules
What is the fate of the excretory tubules in males?
Continue
What is the fate of the excretory tubules in females?
end however form:
- vestigial Garner’s duct
- epoophron
- paraophron
What remains from the mesonephros system?
mesonephric duct
What does the meTanephros develop from?
- metanephric blastema
2. ureteric bud
What is the metanephric blastema?
Excretory unit: Nephros Bowman's capsule PCT Loop of Henle DCT
