The oral mucosa is the moist tissue lining the inside of the mouth. It plays a crucial role in protecting the underlying structures and facilitating functions such as chewing and swallowing. The mucosa is composed of several layers, including the epithelium and connective tissue, which help maintain oral health. This tissue is rich in blood vessels and nerves, making it sensitive to touch and temperature. The oral mucosa also contains specialized cells that produce saliva, which aids in digestion and keeps the mouth moist. Proper care of the oral mucosa is essential for overall oral health and can prevent issues like oral infections and canker sores.