Chapter 14

Question 1

After the sinovaginal bulbs have proliferated
and fused, they form a solid core of endodermal
cells called the
(A) vestibule of the vagina
(B) uterovaginal primordium
(C) urogenital sinus
(D) vaginal plate
(E) clitoris

Answer 1

D. The sinovaginal bulbs proliferate, fuse, and form the vaginal plate under the inductive influence of the paramesonephric ducts. The vaginal plate then canalizes to form the inferior two
thirds of the vagina.

Question 2

A structure found within the adult female
pelvis formed from the gubernaculum is the
(A) broad ligament
(B) suspensory ligament of the ovary
(C) round ligament of the uterus
(D) medial umbilical ligament
(E) median umbilical ligament

Answer 2

C. The round ligament of the uterus and the ovarian ligament both form from the gubernaculum.

Question 3

The uterine tubes of the adult female are
derived embryologically from which of the following?
(A) Mesonephric duct
(B) Mesonephric tubules
(C) Paramesonephric duct
(D) Paramesonephric tubules
(E) Uterovaginal primordium

Answer 3

C. The cranial portion of the paramesonephric ducts form the uterine tubes.