Medical Definition of Musculus tarsalis superior
1.
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's syndrome result in ptosis.
Synonym: musculus tarsalis superior, Muller's muscle.
(05 Mar 2000)
Lexicographical Neighbors of Musculus Tarsalis Superior
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