Female Repro Tract Development (lecture)

Question 1

What signal is primarily responsible for male differentiation?

Answer 1

Mullerian Duct inhibitng factor –> mullerian Duct regression

Question 2

What would result in and XY genotype with androgen resistance?

Answer 2

Testicular feminization: No external male genitalia form, but the person would still have epididymis, vas deferens, ejaculator duct and seminal vesicles

Question 3

What is the embryologic origin of the oviduct, uterus, and upper vagina?

Answer 3

Mullerian Duct

Question 4

What is the embryologic origin of the clitoris, labia, and lower vagina?

Answer 4

Urogenital Primordia

Question 5

What is responsible for breast development during puberty and its source?

Answer 5

Estrogen from the ovaries

Question 6

What is the most valuable measurement for investigating precocious puberty?

Answer 6

LH
Normal rules out central
High rules central in
Low indicates exogenous source