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splenius capitis (muscle)


Definition: flat superficial muscle of the posterior neck, distinguished from the splenius cervicis muscle primarily by its insertion onto the cranium; origin, from ligamentum nuchae of last four cervical vertebrae and supraspinous ligament of first and second thoracic vertebrae; insertion, lateral half of superior nuchal line and mastoid process; action, rotates head and extends neck; nerve supply, dorsal primary rami of second to sixth cervical spinal nerves.

Synonym(s): musculus splenius capitisTA, splenius muscle of head

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.