Anatomical hierarchy

General Anatomy > Muscles; Muscular system > Muscles of neck > Scalenus medius; Middle scalene

Translations

Description

Origin: Posterior tubercles of transverse process of C2-C6

Insertion: First rib

Artery: Ascending cervical artery (branch of inferior thyroid artery)

Nerve: Ventral rami of the third to eighth cervical spinal nerves

Action: Elevate 1st rib, rotate the neck to the opposite side

Description:
The Scalenus medius, the largest and longest of the three Scaleni, arises from the posterior tubercles of the transverse processes of the lower six cervical vertebrae, and descending along the side of the vertebral column, is inserted by a broad attachment into the upper surface of the first rib, between the tubercle and the subclavian groove.


This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).

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