Neck and Tongue Muscle Innervation

Question 1

Tongue

Answer 1

Motor: CN XII
Sensation:
CN V3 (Ant. 2/3),
CN IX (Post. 1/3)
Taste:
Chorda tympani (CN VII) Ant. 2/3
CN IX, Post. 1/3

Question 2

Genioglossus

Answer 2

CN XII

Question 2

Styloglossus

Answer 2

CN XII

Question 3

Geniohyoid

Answer 3

Ventral Ramus C1 via CN XII

Question 4

Digastric

Answer 4

Ant. belly: Inferior alveolar
Post. belly: CN VII

Question 5

Mylohyoid

Answer 5

Inferior alveolar

Question 6

Hyoglossus

Answer 6

CN XII

Question 7

Palatoglossus

Answer 7

CN X

Question 8

Palatopharyngeus

Answer 8

CN X

Question 9

Levator veli palatini

Answer 9

CN X

Question 10

Tensor veli palatini

Answer 10

CN V3

Question 11

Salpingopharyngeus

Answer 11

CN X

Question 12

Pharyngeal constrictors

Answer 12

CN X

Question 13

Cricothyroid

Answer 13

Superior laryngeal nerve (CN X)

Question 14

Intrinsic muscles of larynx

Answer 14

Inferior laryngeal nerve (CN X)

Question 15

Platysma

Answer 15

CN VII

Question 16

Trapezius

Answer 16

CN XI

Question 17

Sternocleidomastoid

Answer 17

CN XI

Question 18

Sternohyoid

Answer 18

Ventral rami C1-C3 via ansa cervicalis

Question 19

Omohyoid

Answer 19

Ventral rami C1-C3 via ansa cervicalis

Question 20

Sternothyroid

Answer 20

Ventral rami C2-C3 via ansa cervicalis

Question 21

Thyrohyoid

Answer 21

Ventral ramus C1 via CN XII