2.1 Development of the Kidney and Urinary Tract Flashcards
Where does the pronephros initially appear?
Cervical region
What is the urogenital ridge?
Region of intermediate mesoderm giving rise to the embryonic kidney and the gonad
Where do the mesonephric ducts start to develop?
Caudal to pronephric region
What makes up the mesonephros?
Mesonephric tubules and mesonephric duct
Where does the ureteric bud sprout from?
Mesonephric duct
What induces the development of the definitive kidney?
Ureteric bud
Where does the collecting system of the definitive kidney develop from?
Ureteric bud
Where does the excretory component of the definitive kidney develop from?
Intermediate mesoderm
What happens in the ascent of the kidneys?
Caudal to cranial shift
Cross arterial fork
What is a duplication defect of the kidney?
Ureteric bud splits either fully or partially resulting in ectopic urethral openings
What is polycystic kidney disease?
Lots of cysts on the kidney
What is the cloaca?
Embryological end point of the urinary, reproductive and GI tracts
What is the urogenital sinus?
Area of hindgut near urorectal sinus which develops to become the future bladder and phallic and prostatic urethra (in men)
What is the female urethra derived from?
Pelvic section of urogenital sinus
Name the 4 parts of the male urethra
Preprostatic
Prostatic
Membranous
Spongy
