Scalenus posterior

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Scalenus posterior
Scalenus posterior01.png
Position of scalenus posterior (shown in red).
Scalenus posterior.png
The anterior vertebral muscles (scalenus posterior visible at bottom right).
Latin Musculus scalenus posterior
Gray's p.396
Origin Transverse processes of C4, C5 and C6
Insertion Second rib
Artery Ascending cervical artery and superficial cervical artery.
Nerve C6, C7 and C8,
Actions Elevate second rib, tilt the neck to the same side
Anatomical terms of muscle

The Scalenus posterior (scalenus posticus), the smallest and most deeply seated of the three scalene muscles, arises, by two or three separate tendons, from the posterior tubercles of the transverse processes of the lower two or three cervical vertebrae, and is inserted by a thin tendon into the outer surface of the second rib, behind the attachment of the scalenus anterior.

It is occasionally blended with the scalenus medius.

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

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