Orbicularis oculi muscle
musculus orbicularis oculi
Closes the eyelids. Three parts: the palpebral (in the eyelids, arising from the medial palpebral ligament) closes gently, as in blinking or sleeping; the lacrimal (behind the lacrimal sac) closes medially and helps drain tears.

In the full entry
The full entry, with every field, sources, quiz and clinical correlations, is in the atlas.
- Origin
- Insertion
- Innervation
- Blood supply
Related clinical cases
- Paralysis of the muscles of the face (Bell's palsy)