salivary glands produce saliva, which moistens the mouth to help a person chew and swallow food. saliva also contains substances (enzymes) that begin the breakdown of food.
there are four pairs of salivary glands:
- the parotid glands are located between the ear and the jaw.
- the submandibular glands are located under the jaw.
- the sublingual glands are located on the floor of the mouth under the tongue.
- the buccal glands are located in the mucous membrane lining the cheeks and mouth. these glands produce only a small amount of saliva.