Muscle innervation

Question 1

Occipitofrontalis

Answer 1

CN VII Facial nerve

pull eyebrows up

Question 2

All facial muscles are innervated by what nerve?

Answer 2

Facial

Question 3

Orbicularis Oris

Answer 3

Buccal and mandibular branches of the facial nerve

compress the lips together

Question 4

Dialator muscles of the lips

Answer 4

buccal and mandibular, seperate lips

Question 5

Buccinator

Answer 5

buccal branch of facial nerve

compress cheeks

Question 6

Anterior and superior auricular muscles

Answer 6

Temporal branch of facial

Question 7

frontal belly of occipitofrontalis

Answer 7

Temporal branch of facial

Question 8

Orbicularis oculi

Answer 8

Temporal branch and Zygomatic branch of facial

Question 9

Muscles of lower lip

Answer 9

Mandibular branch of facial

Question 10

Platysma

Answer 10

Cervical branch of facial

Question 11

Sternocleidomastoid

Answer 11

Accessory nerve (motor) and branches from ventral rami of C2 and C3 spinal nerves

Question 12

Scalene muscles

Answer 12

Direct branches from ventral rami of cervical spinal nerves
Scalene anterior- C3-C6
Scalene Medius- C2-C7
Scalene Posterior- C4-C6

Question 13

Omohyoid

Answer 13

Ansa Cervicalis (ventral rami C1-C3)

Question 14

Sternohyoid

Answer 14

Ansa cervicalis (C1-C3)

Question 15

Sternothyroid

Answer 15

Ansa cervicalis (C1-C3)

Question 16

Thyrohyoid

Answer 16

C1 fibers via hypoglossal nerve

Question 17

Digastric posterior belly

Answer 17

Facial nerve

Question 18

Digastric anterior belly

Answer 18

Nerve to mylohyoid (branch of inferior aleolar nerve from V3)

Question 19

Stylohyoid

Answer 19

Facial nerve

Question 20

Mylohyoid

Answer 20

Nerve to mylohyoid

Question 21

Geniohyoid

Answer 21

C1 fibers via hypoglossal

Question 22

Longus capitis

Answer 22

Branches from ventral rami of C1 to C3 spinal nerves

Question 23

Longus colli

Answer 23

Branches from ventral rami of C2 to C6 spinal nerves

Question 24

Rectus capitis anterior

Answer 24

branches from loop between ventral rami of C1 and C2 spinal nerves

Question 25

Rectus capitis lateralis

Answer 25

Branches from loop between ventral rami of C1 and C2 spinal nerves

Question 26

What innervates the superior oblique?

Answer 26

CNIII Trochlear nerve

Question 27

What innervates the lateral rectus?

Answer 27

CNVI Abducens

Question 28

Temporalis

Answer 28

Anterior and posterior deep temporal nerves

Question 29

Masseter

Answer 29

Masseteric nerve

Question 30

Lateral Pterygoid

Answer 30

Lateral Pterygoid nerve

Question 31

Medial Pterygoid

Answer 31

Medial pterygoid nerve

Question 32

Tensor veli palatini

Answer 32

CN V

Question 33

Levator veli palatini

Answer 33

CN X

Question 34

Palatoglossus

Answer 34

CN X

Question 35

Palatopharyngeus

Answer 35

CN X

Question 36

Musculus Uvulae

Answer 36

CN X

Question 37

All tongue muscles are innervated by what?

Answer 37

CN XII Hypoglossal

Question 38

Palatoglossus is innervated by what?

Answer 38

pharyngeal branch of CN X