Tarsalis muscle

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The location of the superior tarsalis and inferior tarsalis muscles

The tarsalis muscle (M. tarsalis Müller; Müller muscle) refers to a layer of smooth muscle that is embedded in the framework of the eyelids .

One differentiates:

  • Musculus tarsalis superior : smooth muscles of the upper eyelid
  • Inferior tarsalis muscle : smooth muscles of the lower eyelid

The innervation occurs through fibers of the sympathetic nervous system . The tarsalis muscle gathers the upper and lower eyelids together vertically, thus widening the eyelid gap .

See also

Ptosis , Horner syndrome

This text is based in whole or in part on the entry Musculus tarsalis in the Flexikon , a Wiki of the DocCheck company . The takeover took place on August 7, 2007 under the then valid GNU license for free documentation .