Spinalis Cervicis
Original Editor Oyemi Sillo
Lead Editors - Abbey Wright, Kim Jackson, Oyemi Sillo, Lucinda hampton, 127.0.0.1 and WikiSysop
Description[edit | edit source]
Spinalis Cervicis belongs to the medial column of the erector spinae (Sacrospinalis) group of muscles.[1][2]
It is the cervical portion of the spinalis muscle with spinalis capitis superiorly and spinalis thoracis inferiorly.
Origin[edit | edit source]
Lower part of ligamentum nuchae (C4 to C6) and spinous process of C7 to T2.[2][3]
Insertion[edit | edit source]
Spinous processes of C2 and sometimes the 3rd and 4th cervical spinous process.[3]
Nerve Supply[edit | edit source]
Posterior rami of cervical and thoracic spinal nerves (C4 to T1). [3]
Blood Supply[edit | edit source]
Dorsal branches of the posterior intercostal arteries from the thoracic aorta.
Action[edit | edit source]
Bilaterally extend the cervical spine.
Unilaterally laterally flex and rotate the cervical spine to ipsilateral (same) side.[3]
Function[edit | edit source]
Spinalis cervicis works with the other erector spinae muscles to produce extension, lateral flexion and rotation at the cervical spine level.
References[edit | edit source]
- ↑ Gray, Henry. Anatomy of the Human Body. Philadelphia: Lea & Febiger, 1918; Bartleby.com, 2000.
- ↑ 2.0 2.1 spinalis muscle | anatomy [Internet]. Encyclopedia Britannica. 2021 [cited 30 November 2021]. Available from: https://www.britannica.com/science/spinalis-muscle
- ↑ 3.0 3.1 3.2 3.3 Spinalis Cervicis : Wheeless' Textbook of Orthopaedics [Internet]. Wheeless' Textbook of Orthopaedics. 2021 [cited 30 November 2021]. Available from: https://www.wheelessonline.com/bones/spine/spinalis-cervicis/
