Anterior scalene muscle

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Anterior scalene muscle
Scalenus anterior01.png
Position of scalenus anterior (shown in red.)
Scalenus anterior.png
The anterior vertebral muscles, viewed from the front. (Scalenus anterior visible at bottom left in red.)
Latin Musculus scalenus anterior
Origin Transverse processes of the third, fourth, fifth, and sixth cervical vertebræ (C3, C4, C5 and C6)
Insertion First rib
Ascending cervical artery (branch of Inferior thyroid artery)
Ventral ramus of C5, C6
Actions Elevates first rib, rotate the neck to the opposite side
Gray's p.396
TA A04.2.01.004
FMA 13385
Anatomical terms of muscle

The anterior scalene muscle also known as the scalenus anterior (scalenus anticus) (/skəˈlnəs ænˈtɪəriər/), lies deeply at the side of the neck, behind the sternocleidomastoid muscle.


It arises from the anterior tubercles of the transverse processes of the third, fourth, fifth, and sixth cervical vertebrae, and descending, almost vertically, is inserted by a narrow, flat tendon into the scalene tubercle on the inner border of the first rib, and into the ridge on the upper surface of the rib in front of the subclavian groove.

Clinical significance[edit]

It can be involved in certain forms of thoracic outlet syndrome.

Additional images[edit]

See also[edit]


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links[edit]