Head And Neck Muscles Innervation

Front 1

platysma

Back 1

cervical of CNVII

Front 2

superior omohyoid

Back 2

ansa cervicalis

Front 3

inferior omohyoid

Back 3

ansa cervicalis

Front 4

sternohyoid

Back 4

ansa cervicalis

Front 5

sternothyroid

Back 5

ansa cervicalis

Front 6

thyrohoid

Back 6

C1

Front 7

cricothyroid

Back 7

superior laryngeal nerve

Front 8

sternocleidomastoid

Back 8

Spinal accessory CNXI

Front 9

Anterior Digastric

Back 9

Mylohoid of V3

Front 10

Posterior Digastric

Back 10

Digastric branch of Trigeminal

Front 11

Mylohyoid

Back 11

Mylohoid of V3

Front 12

Masseter

Back 12

V3

Front 13

Buccinator

Back 13

buccal of CNVII

Front 14

Depressor anguli oris

Back 14

Buccal and Mandibular of CNVII

Front 15

Zygomaticus major

Back 15

Zygomatic and buccal of CNVII

Front 16

Zygomaticus minor

Back 16

Zygomatic and Buccal of CNVII

Front 17

Levator labii Superioris

Back 17

Zygomatic of CNVII

Front 18

Depressor labii inferioris

Back 18

Mandibular of CNVII

Front 19

Levator Labii Superioris Alaeque Nasi

Back 19

Zygomatic and Buccal of CNVII

Front 20

Mentalis

Back 20

Mandibular of CNVII

Front 21

Orbicularis oris

Back 21

Buccal of CNVII

Front 22

Orbicularis oculi

Back 22

Temporal and Zygomatic of CNVII

Front 23

Frontalis

Back 23

Temporal of CNVII

Front 24

Temporalis

Back 24

Anterior divison of Mandibular Nerve V3

Front 25

Levator Palpebrae superioris

Back 25

Oculomotor CN3

Front 26

Superior tarsal

Back 26

Sympathetic, opthalamic artery

Front 27

Superior oblique

Back 27

trochlear (CNIV)

Front 28

Superior Rectus

Back 28

CNIII

Front 29

Inferior Rectus

Back 29

CNIII

Front 30

Inferior oblique

Back 30

CNIII

Front 31

Medial rectus

Back 31

CNIII

Front 32

Lateral rectus

Back 32

Abducens (CNVI)

Front 33

Splenius capitis

Back 33

C3 and C4

Front 34

Levator Scapulae

Back 34

C3, C4, and C5

Front 35

Anterior Scalenes

Back 35

C4-C6

Front 36

Middle Scalenes

Back 36

C3-C8

Front 37

Posterior Scalenes

Back 37

C5-C7

Front 38

Thyrohyoid membrane

Back 38

Pierced by internal laryngeal nerve (part of the superior laryngeal, part of vagus CNX)

Front 39

Cricothyroid muscle

Back 39

external laryngeal nerve (part of the superior laryngeal, part of vagus CNX)

Front 40

Esophagus and Trachea

Back 40

Recurrent Laryngeal nerve, part of vagus CNX, Left side wraps around the aorta, Right side wraps around the subclavian

Front 41

Diaphragm

Back 41

Phrenic Nerve (C3, C4, C5), Next to internal jugular vein, on top of anterior scalene

Front 42

Brachial plexus

Back 42

C5-T1, has suprascapular nerve as second brach off of C5