sexual differentiation

Question 1

development of gonads from

Answer 1

intermediate mesoderm

Question 2

when do male/female characteristics appear

Answer 2

wk6/7

Question 3

where to primordial germ cells migrate to

Answer 3

genital ridges

Question 4

vas deferens, epidydimus, seminal vesicles comes from

Answer 4

Wolffian duct

Question 5

fallopian tubes and uterus. cervix, upper 1/3 vagina come from

Answer 5

mullerian duct (motheran duct)

Question 6

primordial germ cells become

Answer 6

gametes

Question 7

what sort of cells are semineferous tubules and ovarian follicles

Answer 7

mesothelial (leydig, sertoli, thecal, granulosa)

Question 8

which gene determines maleness

Answer 8

SRY

Question 9

what does sry protein bind with

Answer 9

sterogenic factor 1

Question 10

what do sertoli cells produce

Answer 10

Mulleran inhibiting factor/anti-mulleran hormone

Question 11

what does MIF do

Answer 11

degenerate uterus etc

Question 12

46 XY DSD is caused by

Answer 12

mutation in SRY gene

Question 13

what happens in in 46 XY DSD

Answer 13

no puberty primary amenorrhoea
present as female
infertility
no MIF
no testosterone

Question 14

DHT forms

Answer 14

penis, prostate, scrotum

Question 15

what is the thing which lowers the gonads

Answer 15

gubernaculum

Question 16

what does gubernaculum become in women

Answer 16

round ligament

Question 17

who has tunica vaginalis

Answer 17

boys

Question 18

what does tunica vaginalis have in it

Answer 18

serous fluid to protect testes anteriorly

Question 19

which muscles come down with the testes

Answer 19

internal and external oblique

Question 20

what is internal oblique called inside the scrotum

Answer 20

cremaster

Question 21

blood supply to ovary

Answer 21

anastamosis of uterine and ovarian arteries

Question 22

lpelvic floor muscles

Answer 22

levator ani and perineal body