Splenius Capitis
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Description
[edit | edit source]
Musculus splenius capitis is one of the deep (or intrinsic) muscles of the back. It is a broad straplike muscle in the back of the neck. Deep to Sternocleidomastoid at the mastoid process.[1]
Origin[edit | edit source]
Lower half of Nuchal ligament (C4-C6) and spinous process of C7-T3[2][3]
Insertion[edit | edit source]
Superior nuchal line, Mastoid process of temporal bone, and rough surface adjoining occipital bone[2][3]
Nerve Supply[edit | edit source]
Dorsal ramus of spinal nerves C3-C6[2]
Blood Supply[edit | edit source]
Muscular branches of the occipital artery from the external carotid artery.
[2]
Action[edit | edit source]
Acting bilaterally: extension of the head and neck;
Acting unilaterally: lateral flexion of the head and neck and rotation the head to the same side.
[3]
Function[edit | edit source]
It also assists in supporting the head in the erect position[1]
Recent Related Research (from Pubmed)[edit | edit source]
References[edit | edit source]
- ↑ 1.0 1.1 Gray's Anatomy of Human Body, Bartleby.com edition. New York: 2000. http://www.bartleby.com/107/115.html
- ↑ 2.0 2.1 2.2 2.3 http://www.anatomyexpert.com/structure_detail/5203/
- ↑ 3.0 3.1 3.2 http://www.wheelessonline.com/ortho/splenius_capitis