1. Embryology Flashcards
What embryological tissue do the kidneys develop from?
Intermediate mesoderm/nephrogenic cord
What are the three sequential systems of the embryological kidney?
Pronephros, mesonephros, metanephros
Which embryological kidney system is nonfunctional?
Pronephros
During what period of gestation is the mesonephros functional?
First trimester
What structures in the adult male does the mesonephros give rise to?
Vas deferens and epididymis
When does the pronephros degenerate?
Week 4
What two structures make up the metanephros?
Ureteric bud and metanephric mesenchyme
What is the ureteric bud derived from?
Caudal end of the mesonephric duct
What is derived from the ureteric bud?
Collecting ducts, calyces, ureters, pelvises
What part of the embryological kidney is functional during the first trimester?
Mesonephros
What event occurs during the fourth week of gestation?
Degeneration of the pronephros
By what week is the ureteric bud fully canalised?
Tenth week
What structure is derived from the caudal end of the mesonephric duct?
Ureteric bud
Which anatomical site is the last to canalise?
The uretopelvic junction
