A mucous membrane is a membrane that covers the cavities (interior) of our body and contains vessels and nerves. Its surface is always slightly moist and is permeable, meaning that it can easily allow a virus or bacteria to enter because it is in direct contact with the blood. For example, the inside of the nose, the vagina, the anus, the glans penis, the eyes, the mouth and the throat are examples of areas of the body where there is a mucous membrane.
