Oral cavity Flashcards
Two parts of the oral cavity
The vestibule, oral cavity proper
Name type of teeth
Incisors, canines, premolars and molars
Upper lip reaches the base of the external nose at…
The nasolabial fold
Fat pad that forms the lateral border of the oral cavity
Bichat’s fat pad
Lower lip reaches to ..
Mentolabial fold
Groove from nose to lip
Philtrum
The red part of the lip
Vermilion border
Mucosal fold in the vestibule
Frenulum
Latin for gums
Gingivae
The two parts of the gums
pars fixa gangivae, pars libra gingivae (fixed and loose)
Connection between the tongue and epiglottis
Lateral (2) and medial glossoepiglottic folds
Connection between the tongue and pharynx
Superior constrictor muscle
Function of filiform papillae
Sensitive to touch
Foliate, fungiform and circulvallate papillae function
Taste buds
Extrinsic muscles of the tongue, with motor innervation
Hyoglossal (hypoglossal), styloglossal (hypoglossal), genioglossal (hypoglossal), palatoglossal (glossopharyngeal and vagus), *base (vagus)
Intrinsic muscles of tongue, with motor innervation
Superior + inferior longitudinal, transversus, verticalis (hypoglossal), *base (vagus)
Sensory innervation of the tongue
(ant) lingual nerve, (post) glossopharyngeal
Taste sensation of the tongue
(ant) Chorda tympani, (post) glossopharyngeal
* circumvallate papillae = glossopharyngeal
Pirogoff tringle bordes, contents
Hypoglossal n, mylohyoid, digastric (lingual artery)
Beclard triangle bordes, contents
Digastric, hyoglossus, greater horn of hyoid (lingual artery)
Contents of the lateral groove of the tongue
Lingual n, submandibular duct, hypoglossal n, sublingual gland
Contents of medial groove of the tongue
Lingual artery, glossopharyngeal n
