Spinalis Muscle

Authors
Affiliations

Nate Yomogida, B.S., SPT

Doctor of Physical Therapy

B.S. in Kinesiology

Chloë Kerstein, B.S., SPT

Doctor of Physical Therapy

B.A. in Neuroscience

Figure 1: Muscles of the Neck and Back1
Reading list
  • Thoracolumbar paraspinal muscles2
  • Neuman3
Table 1: Spinalis muscles
Muscle Origin Insertion Innervation Action

Spinalis Cervicis

Origin

C5-T2 (SP)4

Insertion

C2-C5 (SP)4

Innervation

Spinal nn. (Posterior Rami)4

Action

  • BIL: Extends C/S and T/S4
  • UNIL: I/L SB cervical and thoracic spine4

Spinalis Thoracis

Origin

T10-L3 (SP, lat surface)4

Insertion

T2-T8 (SP, lat surface)4

Innervation

Spinal nn. (Posterior Rami)4

Action

  • BIL: Extends C/S and T/S4
  • UNIL: I/L SB cervical and thoracic spine4

References

1.
Betts JG, Blaker W. Anatomy and Physiology. 2nd ed. OpenStax; 2022. https://openstax.org/details/books/anatomy-and-physiology-2e/?Book%20details
2.
Donnelly JM, Simons DG, eds. Travell, Simons & Simons’ Myofascial Pain and Dysfunction: The Trigger Point Manual. Third edition. Wolters Kluwer Health; 2019.
3.
Neumann DA, Kelly ER, Kiefer CL, Martens K, Grosz CM. Kinesiology of the Musculoskeletal System: Foundations for Rehabilitation. 3rd ed. Elsevier; 2017.
4.
Gilroy AM, MacPherson BR, Wikenheiser JC, Voll MM, Wesker K, Schünke M, eds. Atlas of Anatomy. 4th ed. Thieme; 2020.

Citation

For attribution, please cite this work as: