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Muscles of the Spine & Neck

Muscles of the Spine & Neck - Term Definition Origin of...

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Term: Origin of Sternocleidomastoid Definition: Medial clavicle & manubrium Term: Insertion of Sternocleidomastoid Definition: Mastoid process of temporal bone, superior nuchal line of occipital bone Term: Action of Sternocleidomastoid Definition: Flexes neck when both sides contract, laterally flexes neck toward opposite side when one side contracts Term: Nerve / Arterial supply of Sternocleidomastoid Definition: Ventral rami of C2 & C3, CN XI / external carotid & subclavian branches Term: Origin of Scalene muscles Definition: Transverse processes of cervical vertebrae
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Term: Insertion of Scalene muscles Definition: Anterior surface of ribs 1 & 2 Term: Action of Scalene muscles Definition: Aid in forced inspiration, rotates & flexes the neck Term: Nerve / Arterial supply of Scalene muscles Definition: Branches of cervical spinal nerves / external carotid & subclavian branches Term: Origin of Splenius capitis Definition: Spinous processes & ligaments of lower cervical & upper thoracic vertebrae Term: Insertion of Splenius capitis
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