The lymphatics of vulva:: (A) Do not freely communicate with each other, (B) Do not cross the labiocrual fold, (C) Transverse the labia from medial to lateral margin, (D) Drain directly into the deep femoral glands
Answer is C. Lymphatic Drainage of Reproductive Tract:
Uterine Corpus –
1. Fundus-Para-aortic lymph nodes
2. Cornu-Superficial inguinal
3. Body-External Iliac L N
Cervix    1. Paramatrial
2. Internal iliac group
3. Obtruator group
4. External iliac group
5. Sacral

All these drain into common iliac and superior lumbar group

Fallopian tube and ovary-Superior lumbar group
Vagina - Upper 2/3-Like cervix
                  Lower 1/3-Inguinal and external iliac nodes
Vulva-    Superficial inguinal
                 Deep inguinal
                 External iliac