Where does salivary gland find? Explain its structure.

Salivary gland produces saliva in the mouth which helps to wet the food and form bolus. These glands secrete serumy liquid and mucus. Saliva digests the starch present in food to maltose and makes the food soluble. Parotid gland, submandibular gland and sublingual gland are the 3 types of salivary gland. Which secrete serumy liquid and mucus.