10 Obstetrics and Gynecology Board Review •••
❍ What is the sensory innervation to the vagina?
Pudendal nerve (S2–S4).
❍ Where is primary lymph drainage from the vagina?
Upper 1/3: External iliac
Middle 1/3: Common/internal iliac
Lower 1/3: Common iliac, superficial inguinal, and perirectal.
❍ What is the average length of the endocervical canal?
2.5–3 cm.
❍ What are the longitudinal folds in the mucous membrane of the endocervical canal called?
Plicae palmatae.
❍ What is the arterial supply to the cervix?
Cervical artery arises from the uterine artery. The cervical arteries approach the cervix at 3 and 9 o’clock.
❍ Name all the surgical cleavage spaces (7, 8, 9, 10, 11, and 12) that are filled with fatty or areolar
connective tissue.
1 Uterosacral ligament
2 Rectum
3 Cardinal ligament
4 Vagina
5 Bladder pillar
6 Urinary bladder
7
8
9
10
11
12
7
8
9
10
11 12
1
2
3
4
5
6
Reproduced, with permission, from Smith JR. An Atlas of Gynecologic Oncology. Taylor & Francis; 2001.
- Prevesical space
- Paravesical space
- Vesicovaginal space
- Rectovaginal space
- Pararectal space
- Retrorectal space