Palpebral part of orbicularis oculi

The palpebral part of the orbicularis oculi (Latin: pars palpebralis musculi orbicularis oculi) is one of the orbicularis oculi muscle parts. It lies within the upper and lower eyelids. The orbicularis oculi muscle is classified as the circumorbital and palpebral facial muscle.

All facial muscles with palpebral part of orbicularis oculi highlighted
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Palpebral part of orbicularis oculi
OriginMedial palpebral ligament
InsertionLateral palpebral ligament
ActionCloses the eyelids
InnervationTemporal and zygomatic branches of the facial nerve (CN VII)
  Blood supply    Branches of the facial, superficial temporal and ophthalmic arteries  

 

Origin

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

 

Insertion

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

Origin and insertion of orbiculairs oculi
Origin and insertion of orbicularis oculi by Anatomy Next

 

Action

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

Action of orbicularis oculi muscle
Action of orbicularis oculi by Anatomy Next

 

Innervation

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

 

Blood supply

The palpebral part of the orbicularis oculi muscle is supplied by the branches of the facial, superficial temporal and ophthalmic arteries.