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Oculomotor nerve

The oculomotor nerve is the third of twelve paired cranial nerves.

It controls most of the eye movements (cranical nerves IV and VI also do some), constriction of the pupil, and holding the eyelid open.

Note:   The above text is excerpted from the Wikipedia article "Oculomotor nerve", which has been released under the GNU Free Documentation License.
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May 22, 2015

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updated 12:56 pm ET