developement

Question 1

What are the three sequential sets of kidneys

Answer 1

pronephros, mesonephros, metanephros

Question 2

what are the two primordia of the UG system

Answer 2

intermediate mesoderm, splanchnopleure of hindgut

Question 3

The intermediate mesoderm bulges into the peritoneal cavity to form what two things? Together called?

Answer 3

nephrogenic cord, gonadal ridge. Together called urogenital ridge

Question 4

Paramesonephric ducts: where do they develop? what do they develop into?

Answer 4

in-foldings of nephrogenic cord. Become uterus, uterine tubes, upper vagina

Question 5

mesonephric duct. What? where does it connect?

Answer 5

embryonic ureter. Joins the mesophrc tubules and drains to cloaca

Question 6

Metanephric diverticulum

Answer 6

aka ureteric bud. originates from mesonephric duct but makes its own connection to cloaca

Question 7

what are the two primordia of the metanephros? what do they give rise to?

Answer 7

ureteric bud: ureters, renal pelvis, calyces, collecting ducts and tubules, metanephric mass of intermediate mesoderm: nephrons

Question 8

where is the union of the ureteric bud and metanephric mesoderm?

Answer 8

b/w the DCT (mesoderm) and the collecting tubule (bud)

Question 9

horseshoe kidney arises from what?

Answer 9

fusion of ureteric buds that hood around inferior mesenteric artery

Question 10

What does the urorectal septum do?

Answer 10

divides cloaca into rectum and UG sinus (bladder and future phallus