The fluid that lubricates the vagina during sexual arousal is produced by the Meyer and Croper glands. Quipoquiz Vaginal Discharge and What it Means for Your Health Rebalance Vaginal discharge is a mixture of fluid comprising bacteria, mucus (liquid) and dead cells secreted by the cervix and vagina to protect the vagina by maintaining the PH, lubricating it, moistening, and The vagina is a multilayered tube 1. Innermost layer(mucosa) is made up of cells similar to the lining of your mouth. A protective layer lubricated by cervical mucus and secretions. 2. Elastic Vagina: Anatomy, Function, Conditions & Care