The salivary glands are located within the mouth and throat. The main types are the parotid, submandibular, and the sublingual glands; All three of these types secrete saliva into the mouth.
However, each through different ways: the parotid secretes saliva via tubes (salivary ducts) that drain saliva, which are located near the upper region of the mouth, Whereas the submandibular secretes saliva under the tongue, and the sublingual glands secrete saliva via multiple ducts on the floor of the mouth.
Salivary glands are also located in the lips, inner cheek area, and in the lining of the mouth and throat. Saliva, produced by the salivary glands, protects teeth from decay, promote digestion, and moistens the mouth’s surface. Full health of these glands require full hydration of the body, as dehydration is a primary risk for salivary gland disorders.