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Per Falla et al. 2002 Head & Neck Right

M. Scalenus Medius

Middle Scalene (Scalen R)

The M. Scalenus Medius (Middle Scalene) is a muscle of the head & neck region. It is responsible for lateral flexion of cervical spine, elevation of 1st rib (accessory respiratory muscle). This muscle is not covered by the official SENIAM catalogue — placement is based on established clinical literature. This page documents the exact electrode position, anatomical attachments and a standardized test movement based on Hermens et al. (2000).

Function

Lateral flexion of cervical spine, elevation of 1st rib (accessory respiratory muscle)

Opposite side: Scalen L
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Anatomy

Origin Proc. transversi C3–C7 (posterior tubercles) Insertion 1st rib (posterior to subclavian artery groove)

Test Movement

Lateral flexion of cervical spine against resistance with fixed thorax

This muscle has no SENIAM-standardized electrode position. Placement should be based on anatomical knowledge.

Related Muscles in This Region

M. Sternocleidomastoideus Sternocleidomastoid M. Trapezius Pars Descendens Upper Trapezius SENIAM M. Splenius Capitis Splenius Capitis M. Levator Scapulae Levator Scapulae
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