Muscle Anatomy of the Orbicularis Oculi

Origin: Palpebral part: to the medial palpebral ligament and adjacent bone on the medial side of the orbit.
Orbital part: to a slip of bone adjacent to the orbit on the orbital process of the frontal bone, to the frontal process of the maxilla, and to the medial palpebral ligament between the two bony areas.

Insertion: Palpebral part: into the skin of the eyelids, blending with levator palpebrae superioris and continuing on to the lateral palpebral raphe.
Orbital part: into the skin surrounding the orbit and blending with adjacent facial muscles

Actions: Closes the eyelids

Innervation: Temporal and zygomatic branches of the facial nerve (cranial nerve VII)

Blood Supply: Branches from the ophthalmic artery

orbicularis_oculi_muscle_med

Information about the cause and effect of orbicularis oculi pain:

Orbicularis Oculi: Eye Pain and Twitching

Orbicularis Oculi Muscle Actions

Primary Actions of the Orbicularis Oculi Muscle

Closes the eyelids tightly

Secondary Actions of the Orbicularis Oculi Muscle

Gently closes the eyelids

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Recommended Beginner Anatomy Books

The Anatomy Coloring Book is one of the best study and reference books for beginning anatomy students. The diagrams are clearly labeled and allow you to see the relationship and placement of the various structures of the body.

The Trail Guide To The Body is another excellent book to help you learn the musculature of the human body. Though the book is geared toward massage therapists and physical therapist assistants, the book with its illustrations and text helps anyone gain a thorough understanding of the human musculoskeletal system and movement. I highly recommend this book for anyone studying anatomy.

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