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Palpebral part of orbicularis oculi

The palpebral part of the orbicularis oculi (latin: pars palpebralis musculi orbicularis oculi) is a part of the orbicularis oculi muscle that lies within the upper and lower eyelids.

Origin

The palpebral part of the orbicularis oculi arises from the medial palpebral ligament.

Insertion

The fibers of the palpebral part of the orbicularis oculi insert into the lateral palpebral ligament.

Action

Upon activation the palpebral part of the orbicularis oculi closes the eyelids.

Innervation

The palpebral part of the orbicularis oculi is innervated by the temporal branch and the zygomatic branch of the facial nerve (CN VII).