extrinsic muscle

extrinsic muscle
a muscle, such as any of those controlling movements of the eyeball, that has its origin some distance from the part it acts on. See also eye.

* * *

a muscle that does not originate in the same limb or part in which it is inserted.

Extrinsic muscle exemplified by the deltoid muscle, which originates at the clavicle, acromion, and spine of the scapula and inserts into the deltoid tuberosity of the humerus.


Medical dictionary. 2011.

Look at other dictionaries:

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  • extrinsic eye muscle — Anat. any of six small muscles that control the horizontal, vertical, and rotating movements of the eyeball. Also called extraocular muscle. * * * …   Universalium

  • extrinsic eye muscle — Anat. any of six small muscles that control the horizontal, vertical, and rotating movements of the eyeball. Also called extraocular muscle …   Useful english dictionary

  • extrinsic — [ɪk strɪnsɪk, ɛk ] adjective 1》 not essential or inherent. 2》 (of a muscle) having its origin some distance from the part which it moves. Derivatives extrinsically adverb Origin C16 (in the sense outward ): from late L. extrinsecus outward ,… …   English new terms dictionary

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  • Splenius capitis muscle — Muscle infobox Name = Splenius capitis muscle Latin = musculus splenius capitis GraySubject = 115 GrayPage = 397 Caption = Muscles connecting the upper extremity to the vertebral column. (Splenius capitis et cervicis labeled at upper right.)… …   Wikipedia

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