Oral cavity

It consists of the mouth and its structures(periodontrium); tongue, teeth, supporting structures

Major salivary glands

Parotid

Submandibular

Sublingual

Minor salivary glands

Buccal

Labial

Lingual

palatine

Tonsils

4=Palatine, tubal, pharyngeal and lingual

Oral cavity Can be divided into:

Vestibule—the area between the teeth or gum and lips or cheek

Oral cavity proper—the area located internal to the teethThe retromolar region is the only area in which the vestibule and the oral cavity proper communicate

Oral Cavity Proper

Bounded:

Anteriorly & laterally : teeth & gums,

Roof : formed by the palate

Floor : formed by the tongue & the mucosa, supported by the geniohyoid and mylohyoid muscles.

Posteriorly, the oral cavity is continuous with the oropharynx via oropharyngeal isthmus/fauces.

lip

Both lips have a muscular “skeleton” composed of the orbicularis oris m.

Upper lip is separated from the cheek by the nasolabial groove

Lower lip is separated from the chin by the labiomental groove