Tongue and oral cavity Flashcards
What forms the roof of the oral cavity?
Hard and soft palates
What forms the floor of the oral cavity?
Mylohyoid mainly, hyoglosss, genioglossus, geniohyoid
What forms the lateral boundaries of the oral cavity?
Lips and cheeks
2 arches can be seen at the back of the oral cavity. 1 is larger and projects further into the midline, which is this?
Palatopharyngeal arch is larger
Palatoglossal arch is smaller
What is the sulcus terminals?
The boundary between the anterior 2/3 and posterior 1/3 of the tongue
What is the small fold of mucous membrane running from he floor of the mouth up the underside of the tongue
Frenulum
What vessel is very superficial on the underside fo the tongue?
Lingual vein
What artery and nerve can been seen on the underside fo the tongue?
Lingual artery and nerve
What innervates the anterior 2/3 of the tongue?
General sense = lingual nerve Special sense (taste) = chorda tympani (VII)
What innervates the posterior 1/3 of the tongue?
Glossopharyngeal
What papillae line the sulcus terminals?
a) Circumvallate papillae
b) Filiform papillae
c) Fungiform papillae
d) Foliate papillae
a
What papillae are not he dorsal surface of the anterior 2/3 of the tongue?
a) Circumvallate papillae
b) Filiform papillae
c) Fungiform papillae
d) Foliate papillae
b
What papillae are the most anterior?
a) Circumvallate papillae
b) Filiform papillae
c) Fungiform papillae
d) Foliate papillae
c
What papillae are found in 2 clusters no the side of the tongue?
a) Circumvallate papillae
b) Filiform papillae
c) Fungiform papillae
d) Foliate papillae
d
What are papillae?
Projections of the tongue containing taste buds. Increase tongue SA so can taste and feel more accurately