Hard & Soft Palate

Question 1

roof of oral cavity is formed from

Answer 1

hard and soft palate

Question 2

anterior 2/3 of hard palate formed from

Answer 2

palatine process of maxilla

Question 3

posterior 1/3 of hard palate formed from

Answer 3

horizontal process of palatine bones + overlying mucosa

Question 4

what is present in hard palate that is thought to help with movement of food

Answer 4

palatine rugae

Question 5

what is anterior to the rugae on the hard palate

Answer 5

incisive papilla which overlies the incisive fossa

Question 6

purpose of the incisive fossa

Answer 6

opening of incisive canals where the nasopalatine nerve and greater palatine artery pass

Question 7

what is the soft palate

Answer 7

muscular continuation of hard palate that separates oro- and nasopharynx and closes oropharyngeal isthmus

Question 8

where are the greater and lesser palatine foramens found

Answer 8

posterolaterally and medial to the 3rd molar tooth

Question 9

what emerges from greater palatine foramen

Answer 9

greater palatine nerve and vessels to the palate

Question 10

what emerges from lesser palatine foramen

Answer 10

lesser palatine nerves and vessels to the soft palate

Question 11

how is soft palate strengthened

Answer 11

anterior part is strengthened by palatine aponeurosis which attaches to posterior edge of hard palate between pterygoid hamuli on either side

Question 12

pterygoid hamulus

Answer 12

feature of medial plate of pterygoid process

Question 13

what is present at soft curved free margin of soft palate

Answer 13

uvula

Question 14

what glands are present deep to the mucosa of the palate

Answer 14

palatine glands

Question 15

function of palatine glands

Answer 15

secrete mucous into oral cavity

Question 16

laterally, soft palate is continuous with

Answer 16

wall of pharynx

Question 17

how is soft palate joined to tongue and pharynx

Answer 17

palatoglossal and palatopharyngeal arches respectively

Question 18

where are the tonsils found

Answer 18

in the tonsillar fossa between the 2 arches

Question 19

name the 2 main muscles of the soft palate

Answer 19

tensor veli palatini
levator veli palatini

Question 20

levator veli palatini function

Answer 20

lifts palate up during swallowing and yawning

Question 21

origin of levator veli palatini

Answer 21

pharyngotympanic tube and temporal bone

Question 22

tensor veli palatini origin

Answer 22

scaphoid fossa, spine of sphenoid & pharyngotympanic tube

Question 23

function of tensor veli palatini

Answer 23

tenses soft palate, supports levator, opens auditory tube during swallowing and yawning to facilitate pressure change

Question 24

insertion of tensor and levator veli palatini

Answer 24

palatine aponeurosis

Question 25

palatopharyngeus

Answer 25

origin is hard palate & palatine aponeurosis and inserts into lateral wall of pharynx

Question 26

palatoglossus

Answer 26

extrinsic muscle of tongue but acts mainly to draw the soft palate down

Question 27

musculus uvulae

Answer 27

inserts into uvula and origin is posterior nasal spine and palatine aponeurosis

Question 28

motor control of muscles of soft palate

Answer 28

via vagus nerve & mandibular nerve (CN V3) - tensor veli palatini ONLY

Question 29

which of the soft palate muscles is not innervated by the vagus nerve and what is it innervated by

Answer 29

tensor veli palatini which is innervated by mandibular nerve CN V3

Question 30

blood supply of the palate

Answer 30

greater and lesser palatine arteries which are branches from ECA

Question 31

greater palatine artery supplies

Answer 31

hard palate

Question 32

lesser palatine artery supplies

Answer 32

soft palate

Question 33

general sensation of palate is from

Answer 33

maxillary division of trigeminal CN V2

Question 34

what nerve supplies hard palate

Answer 34

greater palatine nerve

Question 35

what nerve supplies soft palate

Answer 35

lesser palatine nerve

Question 36

what does the nasopalatine nerve supply

Answer 36

anterior gingiva and mucosa

Question 37

course of the greater palatine artery

Answer 37

through greater palatine foramen to hard palate then to incisive fossa to anastomose with sphenopalatine artery and supply nasal septum

Question 38

course of lesser palatine artery

Answer 38

lesser palatine foramen to soft palate then anastomoses with ascending palatine artery which is a branch of the facial artery

Question 39

what are the fauces

Answer 39

space between the oral cavity and the pharynx, laterally bounded by the pharynx

Question 40

what is present between the 2 arches

Answer 40

this is the isthmus of the fauces that contains the tonsillar fossae with palatine tonsils

Question 41

what is the uvula

Answer 41

soft tissue projection posteriorly in oral cavity

Question 42

function of uvula

Answer 42

helps create a seal when swallowing to prevent food / liquids entering the nasopharynx