scalene muscles


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sca·lene mus·cles

(skā'lēn mŭs'ĕlz)
A group of three muscles (e.g., anterior, middle, posterior) located in the side of the neck.
References in periodicals archive ?
Brachial plexus can be seen as three hypoechoic nodular structures between the scalene muscles.
Caption: Figure 3: Position of the needle and local anesthetic distribution between the scalene muscles around the nerves in the interscalene region during the performance of the interscalene block.
Magnetic resonance imaging (MRI) revealed a well-defined and lobulated mass in the scalene muscles with a hypointense signal void on T1-weighted images (Figure 2a) and a hyperintense signal void on T2-weighted images (Figure 2b), and it showed extensive enhancement on gadolinium-enhanced T1-weighted images.
Of the five cases, one was located in the middle scalenius muscle, one in the posterior scalenius muscle, one in the anterior scalenius muscle, and the others originated from unspecified scalene muscles (3-6).
Soft-tissue abnormalities include scalene muscle abnormalities and fibrous bands.
Falla D, Rainoldi A, Jull G, Stavrou G, Tsao H (2004d) Lack of correlation between sternocleidomastoid and scalene muscle fatigability and duration of symptoms in chronic neck pain patients.
Many authors describe techniques for locating or palpating the scalene muscles (Brantigan and Roos 2004, Falla et al 2002a, Gross et al 2002, Kostopoulos and Rizopoulos 2001, Porterfield and DeRosa 1995, Senjyu et al 2002).
The scalene muscles are especially variable, and physiotherapists can clearly benefit from understanding some of the common variations that exist and how they may impact on clinical practice.
The muscles most commonly involved in the thoracic outlet region are the two scalene muscles (scalenus anterior and scalenus medius) attaching to the first rib, the subclavius muscle attaching between the clavicle and first rib, and the pectoralis minor attaching at the coracoid process.
LSA run upward and passed between anterior and middle scalene muscles. LVA continued upward and entered deep to the transverse process at the level of the 7th cervical vertebrae.
The stellate ganglion is located medial to the scalene muscles, lateral to the longus colli muscle and the trachea, together with the laryngeal recurrent nerve, anterior to the transverse process; the inferior most section is located posteriorly to the superior margin of the first section of the subclavian artery and at the origin of the vertebral artery, posterior to the apex of the lung.
The scalene muscles are paravertebral muscles which begin at the first and second ribs and pass up into the sides of the neck, varying in the number of their costal and vertebral attachments, as well as in the interrelationships caused by the fusion of numerous fasciculi.