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6 Cards in this Set

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What are the two origins of the splenius muscle?
1) Nuchal ligament
2) C7-T3/4 vertebral spines
What are the two insertions of the splenius capitis muscle?
1) Mastoid process of temporal bone
2) Lateral third of superior nuchal line of occipital bone
What is the insertion of the splenius cervicis muscle?
Tubercles of C1-C3/4 transverse processes
What innervates the splenius muscle?
Dorsal rami of C2-C6 spinal nerves
What are the main actions of the splenius muscles?
extends and laterally bends neck and head; rotates head to same side
What is the arterial supply of the splenius muscles?
supplied segmentally by deep cervical artery and posterior intercostal arteries