Head: Palate

Question 1

What is the hard palate?

Answer 1

Separates the oral cavity from nasal cavity

Question 2

What is the hard palate superiorly covered by?

Answer 2

Respiratory mucosa

Question 3

What is respiratory mucosa?

Answer 3

Keratinzed pseudostratified epithelium

Question 4

What does the oral mucosa in the hard palate form?

Answer 4

• Palatine raphe (median
  longitudinal ridge)
• Palatine rugae (transverse palatine
  folds)
• Incisive papilla (behind the
  incisors)

Question 5

What is the soft palate?

Answer 5

Continues from the hard palate

Question 6

What is in the soft palate?

Answer 6

5 muscles!

Question 7

What is the uvula?

Answer 7

small projection hanging from the posterior free margin

Question 8

What are the five muscles of the soft palate?

Answer 8

• Tensor veli palatini
• Levator veli palatini
• Palatopharyngeus
• Palatoglossus
• Musculus uvulae

Question 9

What are the actions of tensor veli palatini?

Answer 9

• Tenses the soft palate
• Opens the
  pharyngotympanic tube
  (yawning, swallowing)

Question 10

What is the innervation of tensor veli palatini?

Answer 10

Medial pterygoid nerve of the
mandibular nerve (V3)

Question 11

What is the action of levator veli palatini?

Answer 11

Elevate the palate (close the
pharyngeal isthmus between the
nasopharynx and oropharynx

Question 12

What is the innervation of levator veli palatini?

Answer 12

Pharyngeal branch of vagus nerve

Question 13

What is the clinical testing for levator veli palatini?

Answer 13

Patient say ‘ah’, if the muscle
function is abnormal, the palate
deviates away from the lesioned
site (normal: elevates evenly)

Question 14

What are the two arches?

Answer 14

Palatopharyngeal and palatoglossal

Question 15

What is the action of palatopharyngeus?

Answer 15

• Depresses soft palate,
• Narrows the isthmus faucium
• Elevates pharynx

Question 16

What is the innervation of palatopharyngeus?

Answer 16

Vagus nerve (pharyngeal branch)

Question 17

Where is the palatopharyngeus located?

Answer 17

In the palatopharyngeal arches

Question 18

What is the action of palatoglossus?

Answer 18

• Depresses soft palate
• Narrows the isthmus faucium
• Elevates back of the tongue

Question 19

What is the innervation of palatoglossus?

Answer 19

Vagus nerve (pharyngeal branch)

Question 20

Where is the palatoglossus located?

Answer 20

In palatoglossal arches

Question 21

What is the action of musculus uvulae?

Answer 21

• Elevates and retracts uvula
• Thickens central region of
  the soft palate

Question 22

What is the innervation of musculus uvulae?

Answer 22

Vagus nerve (pharyngeal branch)

Question 23

Where is the musculus uvulae?

Answer 23

In the uvula

Question 24

What is the innervation of the of the palate?

Answer 24

Nasopalatine nerve, greater & lesser palatine nerves

Question 25

What does nasopalatine nerve innervate?

Answer 25

Anterior hard
palate

Question 26

What does greater palatine nerve innervate?

Answer 26

Mucosa and glands of the hard
palate

Question 27

What does the lesser palatine nerve innervate?

Answer 27

Mucosa and glands of the soft palate

Question 28

What innervates the palatine glands?

Answer 28

Greater petrosal and deep petrosal nerves

Question 29

What are the arteries of the palate?

Answer 29

Ascending palatine artery, palatine branch of ascending pharyngeal artery, and descending palatine artery

Question 30

What is the lymph of the palatine?

Answer 30

Deep cervical lymph nodes

Question 31

What is the venous drainage of the palate?

Answer 31

Pterygoid plexus -> pharyngeal plexus