Muscles Associated with the Scapula
Clavotrapezius - Originates from the back of the skull and first several cervical vertebrae and inserts on the clavicle. It helps support the shoulder and draws the clavicle toward the head.
Acromiotrapezius - originates from the spines of the cervical vertebrae. It supports the scapula and helps during rotation.
Spinotrapezius - originates from the spines of the thoracic vertebrae and inserts on the spine of scapula. Its action is to support the scapula and rotate it backwards.
Levator scapulae ventralis - originates from the base of the skull and the atlas. It inserts on the acromion of the scapula. Contraction of this muscle helps to rotate the scapula anteriorly.
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