Anatomical hierarchy

General Anatomy > Muscles; Muscular system > Muscles of neck > Scalenus minimus; Scalenus minimus muscle



Origin: Anterior tubercle of transverse process of C6 or C7

Insertion: First rib - Suprapleural membrane (Sibson's fascia)

Artery: Ascending cervical artery, superficial cervical artery

Nerve: C7-C8

Action: Elevates the first rib - Supports suprapleural membrane

Extra muscle occasionally present between the scalenus anterior and medius, and having the same action and innervation.

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


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