Embryo

Question 1

3 stages of kidney development and their timing (weeks)

Answer 1

Pronephros (4)
Mesonephros (4-10)
Metanephros (5+)

Question 2

Mesonephros comes from:

Answer 2

thoracolumbar

Question 3

Metenephros comes from:

Answer 3

cloaca

Question 4

2 portions of urogenital ridge

Answer 4

nephrogenic cord

gonadal ridge

Question 5

Mesonephros forms ____ that degenerate by week __

Answer 5

primitive nephrons

10

Question 6

Metanephros 2 components:

Answer 6

Uteric bud

Metanephrogenic blastema

Question 7

Uteric bud gives rise to:

Answer 7

collecting portion of kidney

Question 8

Metanephrogenic blastema gives rise to:

Answer 8

excretory portion of kidney

Question 9

Kidneys ___ from ___ to ___ by week _

Answer 9

ascend
pelvis
abdomen
9

Question 10

Mesonephric tubule persists as:

Answer 10

ductules of testes

Question 11

Mesonephric duct persists as:

Answer 11

ductus deferans, epididymis, seminal vesicle, ejac duct, and trigone

Question 12

Primordial germ cells migrate to:

Answer 12

gonadal ridges

Question 13

Primitive gonadal cords are formed by:

Answer 13

cord cells

Question 14

Gonadal cord cells are derived from:

Answer 14

mesothelium lining the gonadal ridge

Question 15

Gonadal cord cells will give rise to:

Answer 15

sertoli cells (in males)
follicular cells (in females)

Question 16

Leydig cells produce:

Answer 16

testosterone

Question 17

Sertoli cells produce:

Answer 17

mullerian inhibiting

Question 18

Stromal cells of the ovary develop from:

Answer 18

mesenchyme of gonal ridge

Question 19

Which cells are “caretakers”

Answer 19

follicular cells

Question 20

Mullerian ducts will form:

Answer 20

uterine tubes, uterus, and superior vagina

Question 21

Inferior vagina is derived from:

Answer 21

urogenital sinus

Question 22

Descent of the testes begins week __ and both testes are in scrotum by week __

Answer 22

26

32

Question 23

What structure does the mature nephron develop from?

Answer 23

metanephrogenic blastema

Question 24

Urogenital sinus gives rise to:

Answer 24

greater vestibular glands
prostate gland
urethra
urinary bladder

Question 25

Horshoe kidney is because it gets blocked by:

Answer 25

IMA (inferior mesenteric a.)

Question 26

Urinary bladder extrophy results from:

Answer 26

failure of anterior abdominal wall to close

Question 27

Renal agenesis can lead to:

Answer 27

oligohydramnies

Potter Syndrome

Question 28

Hydrocoele is:

Answer 28

fluid filled cysts

Question 29

Cryptorchidism is:

Answer 29

failure of balls to drop