Palate

Question 1

what is the hard palate formed by ?

Answer 1

palatine process of maxilla in front
and
horizontal plates of palatine bones behind

it is bound by alveolar arches

Question 2

describe the soft palate .

Answer 2

it is a fibro-musculo-glandular curtain which hangs from the posterior margin of the hard palate .

Question 3

where does the soft palate extend ?

Answer 3

extends backwards between the nasal and oral parts of the pharynx

Question 4

what are the palato-glossal and palato pharyngeal arches ?

Answer 4

2 mucus folds that extend down from the base of the uvula

Palato-glossal arch liwa infront of the tonsillar fossa and is form the tongue to palate

palato-pharyngeal arch lies behind the the tonsillar fossa and is from the pharynx to the palate

Question 5

what is the palatine aponeurosis ?

Answer 5

fibrous framework where all muscles of palate are attached

Question 6

what are the muscles of the palate and what are their functions ?

Answer 6

tensor veli palatini : tenses soft palate

levator veli palatini : raises soft palate

musculus uvulae : elevates uvula

palatoglossus :pulls root of tongue upward, narrowing oropharyngeal isthmus

Palatopharyngeus: Elevates wall of the pharynx

Question 7

what supplies blood to the palate ?

Answer 7

branches of maxillary artery :

• greater palatine
• lesser palatine
• sphenopalatine

branch of facial artery : ascending palatine

branch of external carotid artery : ascending pharyngeal

Question 8

what motor nerves supply the palate ?

Answer 8

motor : all muscles are supplied by the accessory nerve (11th cranial nerve ) except for the tensor veli palatini which is supplied by the trunk of the mandubular nerve

Question 9

what sensory nerves supply the palate ?

Answer 9

mostly by maxilary nevre branches :

• greater palatini nerve
• lesser palatini nerve
• nasopalatini nerve

Question 10

what nerve supplies the soft palate ?

Answer 10

glossopharyngeal