Splenius Cervicis

Original Editor ­ Oyemi Sillo Top Contributors - Oyemi Sillo and Tarina van der Stockt ­


Description

Musculus splenius cervicis is one of the deep (or intrinsic) muscles of the back. [1]


Splenius cervicis muscle animation small.gif

Origin

Spinous processes of T3 to T6 [2]

Insertion

 Posterior tubercles of transverse processes of C1 to C3(4) [3][4]

Nerve Supply

Dorsal rami of cervical spinal nerves (C5, 6, 7, and 8)[3]


Blood Supply

 Muscular branches of the occipital artery from the external carotid artery. Dorsal branches of the posterior intercostal arteries from the thoracic aorta. [3]

Action

Bilaterally they extend the neck; unilaterally they laterally flex and rotate the head and neck to the same side. [2]

Function

It also assists in supporting the head in the erect position[1]


References

  1. 1.0 1.1 Gray's Anatomy of Human Body, Bartleby.com edition. New York: 2000.fckLRhttp://www.bartleby.com/107/115.html
  2. 2.0 2.1 http://www.wheelessonline.com/ortho/splenius_cervicis_1
  3. 3.0 3.1 3.2 http://www.anatomyexpert.com/structure_detail/5215/
  4. http://www.ptcentral.com/muscles/muscletrunk.html