<prompt> True for vagina:Lined by columnar epitheliumAnterior fornix is deepestLacks mucus secreting glandsAnterior wall is long as compared to posterior  <response>: 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 Baholins 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. 