Semispinalis dorsi

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Semispinalis dorsi
Deep muscles of the back. (Semispinalis dorsi visible at center left.)
Latin musculus semispinalis thoracis, musculus semispinalis dorsi
Gray's subject #115 400
Origin transverse processes of the sixth to the tenth thoracic vertebræ
Insertion    spinous processes of the upper four thoracic and lower two cervical vertebrae
Artery:
Nerve:
Action:
Dorlands
/Elsevier
m_22/12550719

The Semispinalis dorsi (or semispinalis thoracis) consists of thin, narrow, fleshy fasciculi, interposed between tendons of considerable length.

It arises by a series of small tendons from the transverse processes of the sixth to the tenth thoracic vertebræ, and is inserted, by tendons, into the spinous processes of the upper four thoracic and lower two cervical vertebrae.

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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.