Embryology

Question 1

Pronephros

Answer 1

week 4, then degenerates

Question 2

Mesonephros

Answer 2

interim kidney for 1st trimester; later contributes to male genital system

Question 3

Metanephros

Answer 3

permenant kidney; first appears in 5th week of gestation; nephrogenesis continues through 32-36 weeks gestation

Question 4

Gives rise to ureter, pelvises, calyces, and collecting ducts (canalizes by 10th week)

Answer 4

Ureteric Bud

Question 5

Differentiation and formation of glomerulus through to distal convoluted tubule

Answer 5

Metanephric mesenchyme (when ureteric bus interacts with it)

Question 6

Last renal part to canalize

Answer 6

Ureteropelvic junction

Question 7

Most commone site of obstruction (hydronephrosis) in fetus

Answer 7

ureteropelvic junction

Question 8

Potter Syndrome

Answer 8

Babies who cannot pee (oligohydraminos) in utero
POTTER
pulmonary hypoplasia, oligohydraminos, twisted face (retrognathia), Twisted skin, Extermity defects (from compression), renal failure (in utero)

Question 9

Horseshoe kidney

Answer 9

inferior poles fuse; trapped under IMA; associated with Turner

Question 10

Nonfunctional kidney consisting of cysts and CT. Usually unilateral. Due to abnormal interaction between ureteric bud and metanephric mesenchyme. NOT INHERITED

Answer 10

Multicystic dysplastic kidney