Relationships: Oral Cavity

Front 1

hard palate (covered by mucosa)

Back 1

forms the roof of the mouth; anterior to soft palate

Front 2

soft palate & uvula

Back 2

hangs posteriorly from hard palate

Front 3

region of the fauces

Back 3

formed by the palatoglossal folds

Front 4

vestibule of the mouth

Back 4

space betw teeth/gingivae & lips and/or teeth/gingivae & cheeks

Front 5

oral cavity proper

Back 5

space from inside of teeth back to oropharynx

Front 6

dorsum of the tongue

Back 6

superior surface of tongue

Front 7

oral part of the tongue

Back 7

anterior 2/3rds of tongue; anterior to sulcus terminalis

Front 8

pharyngeal part of the tongue

Back 8

posterior 1/3rd of tongue, posterior to sulcus terminalis

Front 9

lingual tonsils

Back 9

tonsillar tissue on post. 1/3rd of tongue, has a “roughened”
appearance

Front 10

lateral glossoepiglottic folds

Back 10

mucosal folds extending from the epiglottis to tongue

Front 11

median glossopiglottic fold

Back 11

mucosal fold in midline extending from epiglottis to tongue

Front 12

. vallecula

Back 12

space between the median & lateral glossoepiglottic folds

Front 13

frenulum of the tongue

Back 13

fold of mucosa from inferior surface of tongue to floor

Front 14

location of sublingual caruncles

Back 14

elevations of tissue just lateral to frenulum of tongue

Front 15

location of sublingual folds

Back 15

crest of elevated mucosa extending from caruncles laterally at the junction of the tongue and oral cavity floor

Front 16

genioglossus muscle

Back 16

extends from substance of tongue to genial tubercles

Front 17

geniohyoid muscle

Back 17

inferior to the genioglossus & superior to mylohyoid
tongue

Front 18

mylohyoid

Back 18

inferior to geniohyoid

Front 19

sublingual gland

Back 19

deep to the mucosa of anterior floor of oral cavity; occupies
the sublingual fossa; rests on the mylohyoid

Front 20

submandibular duct

Back 20

runs along the medial surface of the sublingual gland

Front 21

lingual nerve

Back 21

crosses from lateral to medial under the submandibular duct

Front 22

submandibular ganglion

Back 22

an expansion or thickening of
the lingual nerve at the point of where it bends and courses
anteriorly – near 3rd molar.

Front 23

hypoglossal nerve

Back 23

it runs significantly inferior to lingual nerve

Front 24

. submandibular gland – deep part

Back 24

lies superior to the posterior half of the mylohyoid

Front 25

levator veli palatini

Back 25

lies deep to the mucosa of the auditory tube opening

Front 26

tensor veli palatini

Back 26

lies anterior to the levator veli palatine

Front 27

palatoglossus muscle

Back 27

deep to palatoglossal fold; extends from soft palate to
tongue

Front 28

palatopharyngeus muscle

Back 28

deep to palatopharyngeal fold; extends from soft palate to pharynx

Front 29

CN IX

Back 29

courses to the base of the tongue deep to the mucosa of the tonsillar bed