Tongue

Question 1

What is the motor innervation of the tongue

Answer 1

All muscles (excpet palatoglussus) - Hypoglossal (CN12)

Palatoglossus - Vague (CN10)

Question 2

What is the innervation of all muscles of the tongue expect palatoglossus

Answer 2

Hypoglossal CN12

Question 3

What is the innervation of the muscle palatoglossus

Answer 3

Vagus CN10

Question 4

What is the general sensory innervation of the tongue

Answer 4

Posterior 1/3 = glossopharyngeal (CN9)

Anterior 2/3 = mandibular branch (V3) of trigeminal nerve (CN5)

Question 5

What is the general sensory innervation of the posterior 1/3 of the tongue

Answer 5

Glossopharyngeal (CN9)

Question 6

What is the general sensory innervation of the anterior 2/3 of the tongue

Answer 6

Mandibular branch (V3) of trigeminal nerve (CN5)

Question 7

What is the innervation of taste of the tongue

Answer 7

Posterior 1/3 - Glossopharyngeal

Anterior 2/3 - Facial nerve (CN7) - chorda tympani branch

Question 8

What is the innervation of taste of the posterior 1/3 of the tongue

Answer 8

Glossopharyngeal (CN9)

Question 9

What is the innervation of taste of the anterior 2/3 of the tongue

Answer 9

Facial nerve (CN7) chorda tympani branch

Question 10

What is some taste of the tongue also innervated by

Answer 10

Vagus (CN10)

Question 11

What are the two types of muscles in the tongue

Answer 11

Intrinsic and extrinsic

Question 12

What is the role of the intrinsic muscles of the tongue

Answer 12

Originate and attach other structures within the tongue

Question 13

What do the intrinsic muscles do

Answer 13

Affect shape and size of tongue - tongue rolling

Question 14

What is the innervation of intrinsic muscles

Answer 14

Hypoglossal nerve (CN XII)

Question 15

What is the motor innervation of the extrinsic muscles of the tongue

Answer 15

Hypoglossal nerve

Expect palatoglossus - vagus nerve