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oculomotor nerve

oculomotor nerve The oculomotor nerve is the third cranial nerve.

The oculomotor nerve is the third cranial nerve. It carries movement signals to muscles that lift the eyelid and move the eye, and it also carries parasympathetic signals that help control pupil constriction and focusing.

Sources

Drafting source: U.S. National Library of Medicine. Medical Subject Headings (MeSH), 2026 descriptor edition. “Oculomotor Nerve” (D009802).
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PsychTerms (psychterms.org), CC BY 4.0, version 1. “oculomotor nerve.” Development preview.

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oculomotor nerve

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Sources

Cite this entry