Monday - Severson - development of kidneys Flashcards Preview

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

other name for mesonephric duct

A

Wolffian duct

2
Q

mesonephric duct makes what structure structures in males

A

ductus deferens
seminal vesicle
epididymis

3
Q

The mesonephros (pre-kidney) grows from what

A

ureteric bud

- grows into the intermediate mesoderm

4
Q

branching and development of the ureteric bud

A

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

5
Q

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

A

the metanephric mesoderm (not the mesonephric duct)

6
Q

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

A

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
Q

single umbilical artery may mean what

A

one kidney didn’t develop

8
Q

pelvic kidney

A

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

9
Q

horseshoe kidney is blocked by what

A

inferior mesentaric artery

10
Q

possible complications of multiple renal arteries

A

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
Q

multicystic kidney disease vs. polycystic

A

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

12
Q

urorectal septum

A

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

13
Q

what connects the bladder to the umbillical cord

A

the allantois

14
Q

3 parts of the urogenital sinus

A

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
Q

formation of the urogenital trigone

A

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
Q

external urethra is formed how

A

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

17
Q

urachal cyst

urachal fisutal

A

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

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

18
Q

extrohy of bladder due to

A

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

19
Q

megacystitis is from

A

posterior urethral valves

20
Q

adrenal development

A

medulla invaginates into the cortex

21
Q

21 hydroxylase deficiency results in

A

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