Scalenus posterior

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Scalenus posterior
The anterior vertebral muscles. (Scalenus posterior visible at bottom right.)
Latin musculus scalenus posterior
Gray's subject #114 396
Origin transverse processes of C4 - C6
Insertion    2nd rib
Artery: Ascending cervical branch of the inferior thyroid artery, and the superficial cervical artery.
Nerve: C6 - C8
Action: Elevate 2nd rib, tilt the neck to the same side

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

It is occasionally blended with the Scalenus medius.

See also

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External links

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 As such, some of the information contained herein may be outdated.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.

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