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superior tarsal muscle

 

Definition: a well-defined layer of smooth muscle that extends from the aponeurosis of the musculus levator palpebrae superioris to the superior tarsus; it is innervated by sympathetic nerves and acts to hold the upper lid in an elevated position; its paralysis in Horner syndrome result in ptosis.

Synonym(s): musculus tarsalis superiorTA, Müller muscle3

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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