Scalenus medius

Scalenus medius
Scalenus medius
Scalenus medius.png
The anterior vertebral muscles. (Scalenus medius visible in bottom center-right.)
Gray384.png
Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli. (Scalenus medius visible at center left.)
Latin musculus scalenus medius
Gray's subject #114 396
Origin 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
Actions Elevate 1st rib, rotate the neck to the opposite side

The Scalenus medius, the largest and longest of the three scalene muscles, arises from the posterior tubercles of the transverse processes of the lower six cervical vertebræ. It descendes along the side of the vertebral column to insert by a broad attachment into the upper surface of the first rib, between the tubercle and the subclavian groove. The brachial plexus and the subclavian artery pass anterior to it. Because it elevates the upper ribs, the middle scalene muscle is also one of the accessory muscles of respiration.

See also

Additional images

External links

  • LUC sm - scalenus medius

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.



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Look at other dictionaries:

  • Scalenus medius — Musculus scalenus medius Tiefe Halsmuskulatur des Menschen (Musculus scalenus medius nur rechts dargestellt) Ursprung Proc. transversus des 2. 7. Halswirbels Ansatz …   Deutsch Wikipedia

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  • scalenus medius muscle — musculus scalenus medius …   Medical dictionary

  • M. scalenus medius — Musculus scalenus medius Tiefe Halsmuskulatur des Menschen (Musculus scalenus medius nur rechts dargestellt) Ursprung Proc. transversus des 2. 7. Halswirbels Ansatz …   Deutsch Wikipedia

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  • Scalenus anterior — Musculus scalenus anterior Tiefe Halsmuskulatur des Menschen (Musculus scalenus anterior nur links dargestellt) Ursprung Proc. transversus des 3. 6. Halswirbels …   Deutsch Wikipedia

  • scalenus — SYN: scalene. [L.] * * * sca·le·nus skā lē nəs n, pl sca·le·ni .nī any of usu. three deeply situated muscles on each side of the neck of which each extends from the transverse processes of two or more cervical vertebrae to the first or second rib …   Medical dictionary

  • Scalenus posterior — Infobox Muscle Name = PAGENAME Latin = musculus scalenus posterior GraySubject = 114 GrayPage = 396 Caption = The anterior vertebral muscles. (Scalenus posterior visible at bottom right.) Caption2 = Origin = transverse processes of C4 C6… …   Wikipedia

  • medius — SYN: middle. [L.] * * * medius see CONSTRICTOR PHARYNGIS MEDIUS, GLUTEUS MEDIUS, PEDUNCULUS CEREBELLARIS MEDIUS, SCALENUS MEDIUS …   Medical dictionary

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