chapter 6: the face & oral cavity
vallate papillae
the largest of the papillae, located at the back of the tongue & are v-shaped
soft palate
the movable posterior third of the palate
oral cavity proper
the space contained within the upper and lower dental arches
facial features
these provide essential landmarks for many of the deeper structures
vestibule
this structure forms the entrance to the oral cavity
vermilion border
transitional area between the skin of the face and mucous membrane of the lip
submucosal injections
can be very painful because the mucosa of the hard palate is tightly bound to the underlying bone
palatal rugae
irregular ridges of masticatory mucosa extending laterally from the incisive papilla
foliate papillae
leaf-like shaped taste buds
filiform papillae
located at the tip of the tongue & do not contain any taste receptors
fungiform papillae
mushroom-shaped taste buds located at the tongues center
ala
winged flare of the nostril
intraoral
inside the mouth
uvula
a fold of mucous membrane attached to the back of the soft palate
linea alba
a long fold of tissue along the buccal mucosa next to where the teeth come together
frenum
a narrow band of tissue that connects two tissues
incisive papilla
a pear-shaped pad of tissue that covers the incisive foramen
gag reflex
a protective mechanism that occurs in the posterior region of the mouth
philtrum
a vertical groove between the nose and upper lip
gingivae
also known as the gums, are masticatory mucosae that cover the alveolar processes of the jaws and surround the necks of the teeth
tongue
an important organ responsible for several functions such as: speech, swallowing, sense of taste, & cleaning of the oral cavity
labia
another name for the lips
labial commissure
corners of the mouth where the upper and lower lips meet
unattached gingiva
darker gingiva that is not attached to the underlying alveolar bone; also known as free gingiva
attached gingiva
extends from the base of the sulcus to the mucogingival junction
extraoral
outside of the mouth
pharynx
passageway for air and food
hard palate
separates the nasal cavity above from the oral cavity below
free gingiva groove
the area where the lighter-colored gingiva meets the darker-colored alveolar mucosa
nasolabial sukus
the groove extending upward between each labial commissure & the ala of the nose