head, poll and dorsal neck muscles

Masseter

Origin:

zygomatic arch

Insertion:

masseteric fossa of the mandible

Rectus capitus

Origin:

Dorsal margin of the spine of the axis

Insertion:

Central branch of the Nuchal crest

Trapezius

Origin:

Dorsal median raphe of the neck. 3rd CV to the dorsal spinous processes of TV 1-9

Insertion:

Cervicis part - dorsal 2/3rds of the scapula

Thoracis - dorsal 3rd of the scapula

Rhomboideus

Origin: Nuchal crest (capitus), dorsal median raphe of the neck from C2 - T1 (cervicis), cranial thoracic spines (thoracis)

Insertion:

medial surface of the scapula cartilage

Serratus ventralis

Origin:

Transverse processes of C2-7 and ribs 1-7

Insertion:

Facies serrata of scapula

Splenius

Origin:

Spinous processes of T1-3

Insertion:

Nuchal crest