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Office chairs Spinalis
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spinalis on ITV West
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From Ned
From Ned's Kitchen: A Spinalis Christmas
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eser û medula spinalis bi kurmancî
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::2014/09/21::
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Spinalis.mpg
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Spinalis video 2 proba 2a
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TV Commercial Spinalis NL
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medulla spinalis
medulla spinalis
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From Wikipedia, the free encyclopedia
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Spinalis
Spinalis.png
Deep muscles of the back (spinalis dorsi visible at center. Other spinalis muscles not visible).
Latin Musculus spinalis
Gray's p.399
Origin Thoracis: Spinous process of upper lumbar and lower thoracic vertebrae.
Cervicis: nuchal ligament and spinous process of C7.
Insertion Thoracis: Spinous process of upper thoracic vertebrae.
Cervicis: Spinous process of cervical vertebrae except atlas.
Artery Lateral sacral artery
Nerve Posterior branch of spinal nerve
Actions Laterally: Flex the head and neck to the same side. Bilaterally: Extend the vertebral column.
Antagonist Rectus abdominis muscle
TA A04.3.02.015
FMA FMA:77179
Anatomical terms of muscle

The spinalis is a portion of the erector spinae, a bundle of muscles and tendons, located nearest to the spine. It is divided into three parts: Spinalis dorsi, spinalis cervicis, and spinalis capitis.

Spinalis dorsi[edit]

Spinalis dorsi, the medial continuation of the sacrospinalis, is scarcely separable as a distinct muscle. It is situated at the medial side of the longissimus dorsi, and is intimately blended with it; it arises by three or four tendons from the spinous processes of the first two lumbar and the last two thoracic vertebrae: these, uniting, form a small muscle which is inserted by separate tendons into the spinous processes of the upper thoracic vertebrae, the number varying from four to eight.

It is intimately united with the semispinalis dorsi, situated beneath it.

Spinalis cervicis[edit]

Spinalis cervicis, or spinalis colli, is an inconstant muscle, which arises from the lower part of the ligamentum nuchæ, the spinous process of the seventh cervical, and sometimes from the spinous processes of the first and second thoracic vertebrae, and is inserted into the spinosus process of the axis, and occasionally into the spinous processes of the two cervical vertebrae below it.

Spinalis capitis[edit]

Spinalis capitis (biventer cervicis) is usually inseparably connected with the semispinalis capitis.

See also[edit]

References[edit]

This article incorporates text from a public domain edition of Gray's Anatomy.

External links[edit]


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