sternocleidomastoid

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sternocleidomastoid

[¦stər·nō¦klīd·ə′ma‚stȯid]
(anatomy)
A muscle of the neck that flexes the head; origin is the manubrium of the sternum and clavicle, and insertion is the mastoid process.
References in periodicals archive ?
Regarding the comparison of the chewing side preference and the postural muscular electrical potential, when chewing preference was at right, there was greater activation of the electric potential for the sternocleidomastoid muscle at left, as well as greater activation of the electric potential of the anterior tibial muscle at right, significantly.
Electromyographic study of the sternocleidomastoid muscle in head movements.
Abbreviations ECR: Extensor carpi radialis muscle EMG: Electromyography iEMG: Integrated EMG area-under-the-curve IS: Imperative signal KF: Knee flexion LLR: Long loop reflex OOc: Orbicularis oculi muscle RT: Reaction time SCM: Sternocleidomastoid muscle WE: Wrist extension.
During routine dissections for first year medical students, an additional head (third head) was found in relation to the sternocleidomastoid muscle in a male cadaver aged approximately 65 years.
Sternocleidomastoid muscle presents several variations commonly at its origin.
During the 2009 and 2010 years, a multidisciplinary group of Brazilian researchers in electromyography with extensive experience in research and clinical area, met periodically to discuss the needs of a specific protocol for sEMG analysis of cervical muscles, more precisely, to the Sternocleidomastoid muscle (SCM), and upper fibers of trapezius muscle.
In this article, we describe our investigation to evaluate the specificity of VEMP testing in normal subjects and to determine the impact that the type of stimulus and the presence or absence of sternocleidomastoid muscle control have on test reliability.
All subjects underwent testing (1) with two types of stimuli and (2) with and without sternocleidomastoid muscle contraction monitoring.
Her neck showed increased tone of the sternocleidomastoid muscles bilaterally.
KEY WORDS: Sternocleidomastoid muscle; Anatomical variation.
Sternocleidomastoid muscle is present across the side of the neck and forms a prominent landmark when contracted.
SUMMARY: The sternocleidomastoid muscle was dissected in one just been born children with approximately nine months of age.

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