260 Obstetrics and Gynecology Board Review •••
❍ What is the average length of the fallopian tube?
10 to 12 cm.
❍ What is the largest and longest portion of the fallopian tube?
The ampulla.
❍ What is the site of most ectopic pregnancies?
The ampulla.
❍ Where do primitive germ cells originate?
They originate in the dorsal part of the hindgut and then migrate to the gonad.
❍ What is the normal weight of the mature ovary?
3 to 8 g.
❍ What is the location of the ovarian fossa?
Below the external iliac vessel and in front of the ureter.
❍ What cell type covers the ovary?
Germinal epithelium.
❍ What two ligaments support the ovary?
The suspensory ligament at the tubal pole and the utero-ovarian ligament at the opposite pole.
❍ What is the name of the vestige of the mesonephric (Wolffian) tubule in the female?
The epoophoron, which is an important potential source of cyst formation.
❍ What is the name of the vestige of the mesonephric duct in the female?
The Gartner duct, which can course along the uterus, cervix, and vagina.
❍ What does the primordial follicle consist of?
The primordial follicle consists of the oocyte with a layer of follicular cells surrounding it.
❍ What is the cumulus oophorus?
A cluster of granulosa cells around the oocyte
❍ What action creates the corpus hemorrhagicum, and into what structure does it evolve?
The formation of a clot at the site of follicular rupture, as the granulosa cells grow into this clot it becomes the
corpus luteum.