Obstetrics and Gynecology Board Review Pearls of Wisdom

6 Obstetrics and Gynecology Board Review •••

❍ What three muscles constitute the levator ani muscle?
Pubococcygeus, iliococcygeus, and puborectalis muscles.

❍ Innervation of the levator ani is from which nerves?
Fourth sacral (sometimes, also, third or fifth sacral).

❍ Name five arteries that supply the rectum.
(1) Superior rectal artery.
(2) Two middle rectal arteries.
(3) Two inferior rectal arteries (see the figure below).

Inferior

mesenteric v.

Inferior

mesenteric a.

Inferior

rectal a.

Aorta Inferior vena cava

Middle

rectal a.

External

iliac a.

Internal

iliac a.

Internal

pudendal a.

Sigmoid

colon

❍ Arterial blood supply to the female urethra arises from what structures?
Inferior vesical and internal pudendal arteries.

❍ Where does the innervation of the urethra develop?
Pudendal nerves and pelvic plexuses.

❍ What is the name of the ovarian venous plexus?
Pampiniform plexus.

❍ The whitish folded scar on the ovary resulting from regression of a corpus luteum has what name?
Corpus albicans.