A superficial muscle of the neck and shoulder in vertebrate animals, extending from the skull and cervical vertebrae to the humerus, primarily responsible for advancing the forelimb, flexing the neck laterally, and assisting in head movement.
A superficial muscle of the neck and shoulder in vertebrate animals, extending from the skull and cervical vertebrae to the humerus, primarily responsible for advancing the forelimb, flexing the neck laterally, and assisting in head movement.