development of the genital system Flashcards Preview

Embryology > development of the genital system > Flashcards

Flashcards in development of the genital system Deck (61)
Loading flashcards...
31

the gubernaculum becomes what in f and m

gubernaculum testes
ovarian ligament and round ligament of uterus

32

genital tubercle becomes what in males and females

males-penis
females-clitoris

33

urogenital folds become what in males and females

labia mainora in females and penis in males

34

genital swellings become what in males and females

scrotum
labia majora

35

phenotypic sex is determined over a long period of time during development and depends on

MIF, testosterone, dihydrotestosterone, and critical timing

36

turner syndrome

45 X0, germ cells degenerate after reaching gonadal ridge; ovaries do NOT form but rather ovarian streaks form

37

migration of germ cells during week 2

arise from the epiblast

38

week 3 migration of germ cells

yolk sac

39

week 5 migration of germ cells

migration through dorsal mesentery of the hindgut

40

week 6 migration of germ cells

arrive at the genital ridge

41

what does the seminiferous tubules form

sertoli cells and spermatogonia

42

what do the mesenchymal cells from

leydig cells that produce testosterone in week 8

43

INFANnital tubercle becomes what in females

clitoris

44

genitcal tubercle becomes what in males

penis

45

the urethrla groove becomes what in males

penile urethral

46

urthral groove becomes wat in females

vestibule

47

urogenital sinus becomes what in males

bladder, urethra, and prostate

48

urogenical sinus becomes what in females

bladder urethra, portions of the vagina and vestibular glands

49

what are the four stages of development of the reproductive system

development of the sexually indifferent goand, development of the ovary/testis, development of genital ducts, development of external genitalia

50

what week does reproductive development start

week 5

51

gonads are derived from

intermediate mesoderm, mesenchyme, and primordial germ cells

52

when do the primordial germ cells invade the gonadal ridges

week 6

53

uterus didelphys

double uterus with double vagina

54

uternus bicornis

two uteri,one vagina

55

weeks 9-12

external genitalia

56

klinefelter syndrome

47xxy male, but small testes, tall intellegence affected

57

androgen insensitivyt syndrome

46 XY but appear as normal females, resissteance to testosterone defect in androgen receptor

58

hydrocele

processus vginalis doesn't close and accumulates fluid, usually spontaneously closes in a few days

59

cryptoorchidism

undescended testes

60

hypospadias

external urethral opening on ventral side