25. Urogenital Ridge and Kidney Flashcards
What happens to the pronephros?
Disappears
What does the mesonephric duct give rise to?
Collecting tubules Calyces Renal pelvis Ureter Trigone of the bladder
What separates the hindgut and urogenital sinus?
Urorectal septum
What happens to the metanephros?
Gives rise to nephrons
What causes a pelvic kidney?
Kidney fails to pass through the fork formed by the umbilical arteries
Remain in pelvis next to common iliac
What causes a horseshoe kidney?
Kidneys are pushed so close together that lower poles fuse
Remain at level of lower lumbar vertebrae because ascent is prevented by the root of the inferior mesenteric artery
What causes duplication of ureters?
Early splitting of the ureteric bud
What causes a vesico-ureteric reflux?
Ureter from the pelvic brim to bladder is too short
What is the imaging for vesico-ureteric reflex in females?
Micturition Cystourethrogram
What is the imaging for vesico-ureteric reflex in males?
Fluoroscopy
What is a urachal fistula?
Lumen of the intraembryonic portion of the allantois persists
Urine drains from the umbilicus
What is a urachal cyst?
Local area of allantois persists
Secretory activity of its lining results in a cyst
What is extrophy of the bladder?
Bladder is exposed to outside world
What does the mesonephric duct persist as in males?
Vas deferens
What does the paramesonephric duct persist as in males?
Prostatic utricle
Appendix testis
