By measuring telomeres, some scientists believe they can determine biological age, which doesn't always equal chronological age. That means some people may be biologically older or younger than their age, said Jerry Shay, professor and vice chairman of cell biology at UT Southwestern Medical Center in Dallas.
It is of ectodermal origin and is continuous with the skin at various body openings such as the eyes, ears, nose and mouth, the urethral opening and the anus. Some mucous membranes secrete mucus, a thick protective fluid. The function of the membrane is to stop pathogens and dirt from entering the body and to prevent bodily tissues from becoming dehydrated.
Mucous Membrane Hygiene Agents. So let's switch gears and discuss the agents that we use on the mucous membranes. Do you need a refresher on what mucous membranes are? Let me help you. These are the mucus secreting tissues that line the openings of the body. We are talking about the mouth, nose, vagina, anus, etc.