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Superior tarsal muscle
From Wikipedia, the free encyclopedia
| Superior tarsal muscle | ||
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| The tarsi and their ligaments. Right eye; front view. (Muscle not labeled but region is visible.) | ||
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| Sagittal section of right orbital cavity. (Muscle not labeled but region is visible.) | ||
| Latin | musculus tarsalis superior | |
| Origin: | ||
| Insertion: | ||
| Artery: | ||
| Nerve: | ||
| Action: | ||
| Dorlands/Elsevier | m_22/12551061 | |
The superior tarsal muscle is a smooth muscle adjoining the levator palpebrae superioris muscle that helps to raise the upper eyelid.
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The superior tarsal muscle originates on the levator palpebrae superioris and inserts on the superior tarsal plate of the eyelid.
The superior tarsal muscle receives its innervation from the sympathetic nervous system on fibers carried along with the ophthalmic artery through the cavernous sinus. These postganglionic sympathetic fibers originate in the superior cervical ganglion.
The superior tarsal muscle works with the levator palpebrae superioris to raise the upper eyelid.
Damage to some elements of the sympathetic nervous system can inhibit this muscle, causing a drooping eyelid (ptosis). This is seen in Horner's syndrome.
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This muscle article is a stub. You can help Wikipedia by expanding it. |
scalp/eyelid: occipitofrontalis (occipitalis, frontalis) - orbicularis oculi - corrugator supercilii - depressor supercilii
extraocular: levator palpebrae superioris - superior tarsal - rectus (superior, inferior, medial, lateral) - oblique (superior, inferior) - intraocular: ciliary - iris dilator - iris sphincter
ear: auriculares - temporoparietalis - stapedius - tensor tympani
nose: procerus - nasalis (dilatator naris) - depressor septi nasi - levator labii superioris alaeque nasi
mouth: levator anguli oris/depressor anguli oris - levator labii superioris/depressor labii inferioris - zygomaticus (major, minor) - mentalis - buccinator - orbicularis oris - risorius
mastication: masseter - temporalis - pterygoid (lateral, medial)
tongue: extrinsic (genioglossus - hyoglossus - chondroglossus - styloglossus) intrinsic (superior longitudinal - inferior longitudinal - transversus - verticalis)
soft palate: levator veli palatini - tensor veli palatini - musculus uvulae - palatoglossus - palatopharyngeus
pharynx: pharyngeal constrictor (inferior, middle, superior) - stylopharyngeus - salpingopharyngeus
larynx: cricothyroid - posterior cricoarytenoid - lateral cricoarytenoid - arytenoid - thyroarytenoid