Semispinalis Cervicis

Original Editor Oyemi Sillo

Lead Editors - Oyemi Sillo, Vanessa Rhule and Tarina van der Stockt  


Description

Semispinalis Cervicis belongs to the Transversospinal group of muscles.[1]

Semispinalis c.jpg

Origin

Transverse processes of T1 to T6[2][3]


Insertion

Spinous processes of C2 to C5[2]


Nerve Supply

Dorsal rami of cervical spinal nerves[2][3]


Blood Supply

Deep cervical artery[3]


Action

Acting bilaterally: extension of the cervical spine

Acting unilaterally: lateral flexion of the neck and rotation to the opposite side.[2] 


Function

Maintains head posture.[4]  

References

  1. Gray, Henry. Anatomy of the Human Body. Philadelphia: Lea & Febiger, 1918; Bartleby.com, 2000. www.bartleby.com/107/.
  2. 2.0 2.1 2.2 2.3 http://www.wheelessonline.com/ortho/semispinalis_cervicis_1
  3. 3.0 3.1 3.2 http://www.anatomyexpert.com/structure_detail/5221/
  4. ptcentral.com/muscles/muscletrunk.html