Renal embryo Flashcards
The urogenital system develops from:
Intermediate mesoderm
The urogenital ridge grows:
cranially to caudally
Which are the 3 overlapping kidney systems?
Pronephros
Mesonephros
Metanephros
What happens with the pronephros in week 4
It begins to form in week 4, but digresses by the end of the week.
What happens with the ducts formed in the pronephros?
They persist and are used by the mesonephros
The mesonephros form the ____ duct, whose function is to___
The mesonephric duct
filter blood
What happens to the mesonephros in week 12?
The mesonephros degenerates.
Where does the mesonephric duct end?
It enters on its most distal end, the cloaca. During the first weeks the digestive tract and renal system have a common end.
Metanephros appears in week___ and become functional by week____
5
9
The metanephros consists of 2 portions these are:
Ureteric bud and metenephros
The ureteric bud comes from the___. and gives rise to the____
mesonephric duct collecting system (collecting tubules to ureter)
Metanephros gives rise to the___
excretory system (nephron) of the urinary tract
How does the ureteric bud and metanephros become one unit?
The ureteric bud comes from the mesonephros and it induce the development of the metanephros. At the same time the metanephros induces the development of the ureteric bud, its a reciprocal relationship
How does the neprhon develop?
The collecting tubules enlongate through the renal vesicles and form the nephron.
Many ___ can drain into one ____
nephrons
collecting tubule
