Digestion and Absorption — Bio Zoology STD 11 — Question

There are three pairs of salivary glands in the mouth. They are the largest parotids gland in the cheeks, the sub-maxillary sub-mandibular in the lower jaw, and the sublingual beneath the tongue. These glands have ducts such as Stenson’s duct, Wharton’s duct, and Bartholin’s duct or duct of Rivinis respectively (Figure). The salivary juice secreted by the salivary glands reaches the mouth through these ducts. The daily secretion of saliva from salivary glands ranges from 1000 to 1500 mL.