8.2 (Tongue and Soft Palate)

Question 1

Muscles of the soft palate (5)

Answer 1

Tensor Veli Palatini, Levator Veli Palatini, Palataglossus, Palatopharyngeus, Musculus Uvulae

Question 2

Tensor Veli Palatini Innervation

Answer 2

CN V3 branch to medial pterygoid via otic ganglion

Question 3

Levator Veli Palatini Innervation

Answer 3

CN X pharyngeal branch

Question 4

Palatoglossus Innervation

Answer 4

CN X pharyngeal branch

Question 5

Palatopharyngeus Innervation

Answer 5

CN X pharyngeal branch

Question 6

Musculus Uvulae Innervation

Answer 6

CN X pharyngeal branch

Question 7

Tensor Veli Palatini action

Answer 7

tenses soft palate, opens pharyngotympanic tube during swallowing/yawning

Question 8

Levator Veli Palatini action

Answer 8

Elevates soft palate during swallowing/yawning

Question 9

Palatoglossus action

Answer 9

Elevates posterior part of tongue and draws soft palate onto tongue

Question 10

Palatopharyngeus action

Answer 10

Tenses soft palate, pulls walls of pharynx superiorly, anteriorly, and medially during swallowing

Question 11

Musculus Uvulae action

Answer 11

shortens uvula and pulls it superiorly

Question 12

Intrinsic muscles of the tongue (4)

General action

Answer 12

Superior longitudinal, inferior longitudinal, transverse, vertical
Alter shape

Question 13

Extrinsic muscles of the tongue (4)

General action

Answer 13

Genioglossus, hyoglossus, styloglossus, palatoglossus

Alter position

Question 14

Extrinsic and intrinsic muscles of the tongue separated by

Answer 14

the lingual septum

Question 15

All muscles of the tongue are (motor) innervated by the ________ nerve EXCEPT for the ______ muscle, which is innervated by _________

Answer 15

Hypoglossal (CN12), palatoglossus, pharyngeal plexus of CN 10

Question 16

Touch and temperature (general sensation) to the anterior 2/3 of the tongue is supplied by _________

Answer 16

The lingual nerve, a branch of CN V3

Question 17

Special sensation to the anterior 2/3 of the tongue is supplied by ____________ EXCEPT for the _________ muscle

Answer 17

The chorda tympani nerve, a branch of CN 7, vallate papillae

Question 18

The posterior 1/3 of the tongue and the vallate papillae muscle are supplied by _________ for general and special sensation

Answer 18

The lingual branch of the glossopharyngeal nerve (CN 9)

Question 19

The basic taste sensations

Answer 19

sweet, salty, sour, bitter

Question 20

Sweetness is detected by the _______

Answer 20

Apex

Question 21

Saltiness is detected at the _________

Answer 21

Lateral margin

Question 22

Sourness and bitterness is detected at the ________

Answer 22

posterior part of the tongue