USMLE Step 2 CK Lecture Notes 2019: Obstetrics/Gynecology (Kaplan Test Prep)

Table I-1-5. Embryology

Gonadal

Ductal

External Genitalia

Germ cells
Coelomic
epithelium
Mesenchyme
Mesonephros

Oogonia

Granulosa

cells

Theca   cells

Rete    ovarii

Spermatogonia

Sertoli cells

Leydig  cells

Rete    testis

Sex chromosomes

Paramesonephric
(Müllerian)
Mesonephric
(Wolffian)
Mesonephric
tubules

Fallopian

tubes

Uterus

Part    of

vagina

Gartner’s

duct

Epoophoron

Paroophoron

Testis  hydatid

Vas deferens

Seminal

vesicles

Epididymis

Efferent    ducts

Absence of  zY  chromosome

Testosterone

Müllerian-inhibiting    factor

Urogenital sinus
Genital tubercle
Urogenital folds
Genital folds

Vaginal

contribution

Skene’s

glands

Bartholin’s

glands

Clitoris

Labia

minora

Labia

majora

Prostate

Bulbourethral

glands

Prostatic

utricle

Penis

Corpora

spongiosa

Scrotum

Presence    or  absence of  testosterone,

dihydrotestosterone,    and 5-alpha reductase

enzyme