Assertion: saliva | /r/CreatedBy | several glands
Facets:
Source sentences:
text: Saliva is produced by several glands: the submandibular glands (which lie bilaterally just under the posterior jaw) produce most of the quantity of saliva (45%) and it is a mixed fluid with both mucous (thick, stringy fluid) and water but containing most of the proteins; the paired parotid glands (which are in the mid-face just in front of the ears) produce primarily serous (or watery) fluid and accounts for about 35% of the total quantity; the sublingual glands (again in a pair just beneath the anterior tongue) are much smaller and contribute only about 10% of the total volume; and finally there are hundreds of small minor salivary glands in the lips, palate and throat which contribute a relatively small, but important portion of natural salivary flow.