Graded Answers
The inside of the mouth is known as the _____.
oral cavity
Underlying the upper lip is the _____, or upper jaw.
maxillae
The bone underlying the lower lip is the _____, or lower jaw.
mandible
The oral cavity is lined by a mucous membrane, the _____.
oral mucosa
The inner parts of the lips are lined by a pink and thick _____.
labial mucosa
The labial mucosa is continuous with the equally pink and thick _____ that lines the inner
cheek.
buccal mucosa
The upper and lower horseshoe-shaped spaces in the oral cavoty between the lips and cheeks
anteriorly and laterally and the teeth and their soft tissue medially ad posteriorly are considered
the mazillary and mandibular _____.
vestibules
Deep within each vestibule is the vestibular fornix, where the pink and thick labial or buccal
mucosa meets the redder and thinner _____ at the mucobuccal fold.
alveolar mucosa
On the inner part of the buccal mucosa, just opposite the maxillary second molar, is the _____,
a small elevation of tissue that protects the duct opening from the parotid salivary gland.
parotid papilla
The _____ is a fold of tissue located at the midline between the labial mucosa and the alveolar
mucosa on both the maxilla and mandible.
labial frenum