Oral Cavity (Anterior View) Flashcards
what is a frenulum?
short mucosal folds
F: frenulum
prevents excess movements of the lips and tongues
what are the specific frenulums of the oral cavity? (3)
1) superior labial
2) inferior labial
3) lingual labial
F: superior labial
attaches the upper lip to gum
F: inferior labial
attaches the lower lip to the gum
F: lingual labial
attaches under surface of tongue to floor of oral cavity
what proportions of the roof of the oral cavity is covered by the hard and soft palate?
hard palate: anterior 2/3
soft palate: posterior 1/3
what are the specific arches of the oral cavity? (2)
1) palatoglossal arch
2) palatopharyngeal arch
F: palatoglossal arch
Connects posterior border of soft palate to tongue
F: palatopharyngeal arch
Connects soft palate to wall of pharynx
L: palatine tonsils
In a shallow fossa between the palatoglossal and palatopharyngeal arches
what forms the anatomical border between the oral cavity and the pharynx?
Palatoglossal arches on the left and right side
what is the narrow space between left and right palatoglossal arches called?
Oropharyngeal isthmus
What is the posterior boundary of the oral cavity?
Oropharyngeal isthmus
What region of the mouth does palatine tonsils sit in, oropharynx or oral cavity?
oropharynx
