True for vagina:
The vagina has no glands, and therefore must rely on other methods of lubrication. Plasma seepage from vaginal walls due to vascular engorgement is considered to be the chief lubrication source, and the Baholin's glands, located slightly below and to the left and right of the introitus (opening of the vagina), also secrete mucus to augment vaginal-wall secretions.
Lined by columnar epithelium
Anterior fornix is deepest
Lacks mucus secreting glands
Anterior wall is long as compared to posterior