Oral Cavity

Question 1

what is the posterior extent of the oral cavity

Answer 1

palatoglossal arch

Question 2

what is the epithelium of the oral cavity

Answer 2

keratinized, nonkeratinized, parakeratinized stratified squamous

Question 3

whats the neurovascularature of hard palate

Answer 3

greater palatine n

Question 4

what two muscles help raise the soft palate

Answer 4

tensor veli palatini (right and left)

Question 5

what are 2 muscles of the soft palate

Answer 5

palatopharyngeus m

palatoglossus m

Question 6

what muscle is between lateral and medial pterygoid plates

Answer 6

tensor veli palatini

Question 7

what other muscle helps raise the soft palate

Answer 7

levator veli palatini

Question 8

what are the 3 arteries of the soft palate

Answer 8

descending palatine a
ascending palatine a
palatine a

Question 9

where does the ascending palatine a branch off of

Answer 9

facial a (ECA)

Question 10

where does the palatine a branch off of

Answer 10

ascending pharyngeal a (ECA)

Question 11

Palatine veins drain where?

Answer 11

IJV from common facial

Question 12

where do the sympathetics to the soft palate come from

Answer 12

deep petrosal nerve that hops on ICA

Question 13

where do the parasympathetics come from?

Answer 13

greater petrosal nerve from CN VII

Question 14

what innervates tensor veli palatini?

Answer 14

V3– MOTOR

Question 15

what innervates

levator veli palatini? palatoglossus, palatopharyngeus, musculus uvulae, salpingopharyngeus m

Answer 15

CN X- MOTOR

Question 16

what 5 arteries supply palatine tonsils

Answer 16

lesser palatine a
ascending pharyngeal a
ascending palatine a
facial a
dorsal lingual a

Question 17

why can heavy bleeding occur with tonsillectomy?

Answer 17

so many artery branches

Question 18

what nerve can be hit with a tonsillectomy?

Answer 18

CN IX

Question 19

what does the submandibular duct run over?

Answer 19

lingual nerve

Question 20

whats another name for the submandibular duct

Answer 20

wharton’s duct

Question 21

what nerve emerges from the medial and lateral pterygoid m?

Answer 21

lingual nerve

Question 22

what branch of CN V is lingual nerve from

Answer 22

V3

Question 23

where do the parasymp fibers to the submandibular gland come from?

Answer 23

chorda tympani (CN VII)
- taste to tongue

Question 24

where do the sympathetic fibers to the submandibular gland come from?

Answer 24

external carotid plexus

Question 25

what is motor innervation to posterior tongue

Answer 25

CN XII

Question 26

what muscle of the tongue does CN XII not innervate

Answer 26

palatoglosseus (CN X)

Question 27

what is sensory innervation to posterior tongue?

Answer 27

CN IX

Question 28

what could happen if unilateral paralysis of CN XII were to happen?

Answer 28

deviation of tongue to paralyzed side

Question 29

what happens with bilateral paralysis of CN XII?

Answer 29

inability to protrude tongue

Question 30

what supplies most superficial structures of the oral cavity

Answer 30

facial a

Question 31

what supplies most of deep structures of the oral cavity

Answer 31

lingual a

Question 32

what are the 3 branches of the lingual artery

Answer 32

dorsal deep sublingual

Question 33

taste anterior 2/3?

Answer 33

chorda tympani (CN VII)

Question 34

posterior 1/3 taste?

Answer 34

IX

Question 35

taste for root of tongue and epiglottis?

Answer 35

X

Question 36

general sensory anterior 2/3?

Answer 36

lingual nerve-V3

Question 37

sensory posterior 1/3?

Answer 37

IX

Question 38

sensory of root of tongue and epiglottis?

Answer 38

X

Question 39

2 branches of the infraorbital a?

Answer 39

ant. supr. alveolar | mid supr. alveolar

Question 40

what supplies the oral cavity

Answer 40

infraorbital (2 branches) post supr alv inferior alveolar ALL FROM MAXILLARY

Question 41

what are the 3 layers of the epithelium of the oral cavity

Answer 41

stratum basale stratum spinosum stratum superficiale

Question 42

what are the 4 types of papillae on the tongue

Answer 42

circumvallate foliate filiform fungiform

Question 43

what are located as dorsal surface taste buds

Answer 43

fungiform

Question 44

which go away when you get older

Answer 44

foliate

Question 45

which are pointy and are most numerous highly keratinized

Answer 45

filiform

Question 46

which are nonkerattinzed and on the posterior part of tongue

Answer 46

circumvallate

Question 47

what surrounds the vallate papilla

Answer 47

von ebner glands

Question 48

what are special sensation taste receptors

Answer 48

chemoreceptors

Question 49

what are sensory receptor organs

Answer 49

taste buds

Question 50

what are cells of the taste bud

Answer 50

neuroepithelial or gustatory or sensory cells, supporting cells, and basal cells

Question 51

what is the function of the major salivary glands

Answer 51

produce and secrete saliva

Question 52

what are the 2 types of salivary gland cells

Answer 52

serous | mucous

Question 53

the parotid gland doesn't have what kind of secreting cells?

Answer 53

mucous secreting cells

Question 54

what kind of cell type are parotid gland

Answer 54

branched acinar (SEROUS)

Question 55

what kind of cell type is sublingual gland

Answer 55

branches tubuloacinar (mixed but mostly mucous)

Question 56

what kind of cell type is submandibular

Answer 56

branched tubuloacinar (mixed but mostly serous)

Question 57

what are serous demilunes?

Answer 57

mucous cells pushing serous cells out