Monday - Severson - development of kidneys Flashcards Preview

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Flashcards in Monday - Severson - development of kidneys Deck (21):
1

other name for mesonephric duct

Wolffian duct

2

mesonephric duct makes what structure structures in males

ductus deferens
seminal vesicle
epididymis

3

The mesonephros (pre-kidney) grows from what

ureteric bud
- grows into the intermediate mesoderm

4

branching and development of the ureteric bud

bud --> renal pelvis --> major calyx --> minor --> collecting tubules

5

the nephron (capsule, proximal, distal and loop) are derived from what

the metanephric mesoderm (not the mesonephric duct)

6

initial location of kidneys. how does that change especially in relation to vascular supply

start deep pelvis - body grow but they stay - first supplied from common iliac but as the move up, new vessels keep forming and old ones degenerate

this means you may have multiple renal arteries

7

single umbilical artery may mean what

one kidney didn't develop

8

pelvic kidney

it's still down by the bladder and fed from the iliac still

9

horseshoe kidney is blocked by what

inferior mesentaric artery

10

possible complications of multiple renal arteries

Hydronephros - arteries are blocking the kidney from emptying
also, if it has multiple arteries, you're not a candidate for transplants. It's all yours. keep it.

11

multicystic kidney disease vs. polycystic

multi - it's dilations of the thin segment of collecting duct

12

urorectal septum

it's mesoderm that divides the cloaca into septum and urogenital sinus

13

what connects the bladder to the umbillical cord

the allantois

14

3 parts of the urogenital sinus

vessicle part - forms bladder, continuous with allantois
pelvic part - becomes neck of bladder and urethra
phallic part - in males this grows into penile urethra

15

formation of the urogenital trigone

so the mesonephric duct come out of the bladder --> then the ureter (uteric bud) comes of the duct. becomes its own duct and comes out of bladder.
then the mesonephric ducts descend to bottom of badder
___-----____ ureters
\ /
~~`--'~~~ mesonephric

16

external urethra is formed how

distal (external) comes from an ectodermal invagination to join with the spongy urethra

17

urachal cyst
urachal fisutal

cyst - it's like another bladder that's higher up

fistula - the urachus is patent at you can pee out your tummy

18

extrohy of bladder due to

lack of anterior wall mesoderm. from some sort of migration problem having to do with the cloaca

19

megacystitis is from

posterior urethral valves

20

adrenal development

medulla invaginates into the cortex

21

21 hydroxylase deficiency results in

masculinization of female genitalia and, in males, early puberty/development