Renal Embryology Flashcards Preview

HRM - Anatomy/Embryology/Histology > Renal Embryology > Flashcards

Flashcards in Renal Embryology Deck (27):
1

What plate of mesoderm gives rise to the urogenital system?

Intermediate plate of mesoderm

2

What are the two ridges that give rise to the renal, then genital regions?

Renal: Nephrogenic ridge
Genital: Genital ridge

3

What are the three developmental phases make up the intermediate mesoderm?

Pronephros
Mesonephros
Metanephros

4

What happens in the pronephric phase?

Pronephric duct grows toward cloaca

5

What does the pronephric duct become?

Mesonephric (Wolffian duct)

6

What happens in the mesonephric phase?

Pronephric duct becomes mesonephric duct

7

What do the mesonephric tubules become?

Efferent ductules of male testis

8

What does the mesonephric duct become?

Ductus deferens and ureteric bud in male
Ureteric bud in female

9

_____ grows into the _________ and forms the _______

Ureteric bud
Intermediate mesoderm
Metanephros (permanent kidney)

10

What structures does the ureteric bud make?

Collecting ducts (tubules)
Major and minor calyces
Renal pelvis
Ureter

11

What embryological tissue gives rise to nephrons?

Metanephric blastema

12

What embryological tissue gives rise to the collecting ducts?

Uretary buds

13

How many vascular lobes are originally supplied by segmental vessels?

Five

14

Where do kidneys get vascular supply from initially?

Common iliac arteries

15

What developmental abnormality results from failure of ureteric bud and metanephric mesoderm interaction?

Renal agenesis

16

Who is most common to get renal agenesis?

Males

17

What obstetric abnormality can tip off a physician to renal agenesis?

Single umbilical artery

18

What developmental abnormalities result from partial division of the ureteric bud prior to interaction with metanephric mesoderm?

Bifid ureters

19

What developmental abnormalities result from complete division of the ureteric bud prior to interaction with metanephric mesoderm?

Supernumary kidneys
Abnormal or non-rotation

20

What developmental abnormality can result from failure of metanephric kidney migration from pelvis?

Pelvic kidney (fused)

21

What developmental abnormalities can result from one developing kidney migrating to the contralateral side?

Crossed ectopic kidney
Fused kidneys
Malrotation

22

What developmental abnormality can result from fusion of the inferior poles of the kidney?

Horseshoe kidney

23

What does a horseshoe kidney ascent oftentimes get blocked by?

Inferior mesenteric artery

24

What is a potential complication of a polar renal artery?

Hydronephrosis

25

What is dilated in the multicystic dysplastic kidney disease?

Nephrons, usually thin segments

26

What does the site of fusion of the cloacal membrane and urorectal septum form?

Perineal body

27

What does the allantois become?

urachus