Muscle innervation - Cervical Plexus C1 - C4 (C5)

Supraclavicular nerves branch out along the medial, lateral and intermedial portions of the neck.

Cutaneous innervation of the skin above and below the clavicle - within the Sternocleidomastoid triangle

Lesser Occipital nerve

C2 -

Greater Auricular nerve

C2 - C3

Inferior nerve root of the Ansa Cervicalis

C2 - C3

Transverse Cervical nerve

C2 - C3

Supraclavicular nerve

C3 - C4

Phrenic nerve

C3 - C5

Superior nerve root of Ansa Cervicalis

C1 -

Superior nerve root of Ansa Cervicalis innervates which muscles in the cervical plexus - C1

Infrahyoid mm Geniohyoid mm

C three, four, five .....

Keeps the diaphram alive

The geniohyoid mm are located in the anterior neck, posterior to the chin (deep) .....

Named for the pathway from the chin to the hyoid bone.

Lesser Occipital nerve innervates which muscles in the cervical plexus - C2

Occipitalis minor Occipitalis major

Supraclavicular nerve innervates which muscles in the cervical plexus - C3 - C4

Superior chest, neck and shoulder

Greater Auricular nerve innervates which muscles in the cervical plexus - C2 - C3

Temporal mandible - TMJ area Anterior neck and inferior ear.

The infrahyoid mm are located in the anterior neck and....

considered strap muscles - there are four infrahyoid muscles that either originate or insert onto the hyoid bone; the sternohyoid, sternothyroid, thyrohyoid and omohyoid muscles all weigh down the hyoid bone and assists larynx during swallowing and speech. .

Occipitalis mm are located ....

inferior portion of the skull; also known as the skull belly. *Posterior auricular nerve (facial nerve)*