trochlear nerve

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trochlear nerve

[′träk·lē·ər ‚nərv]
(neuroscience)
The fourth cranial nerve; either of a pair of somatic motor nerves which innervate the superior oblique muscle of the eyeball.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Which one of the following statements about the trochlear nerve is TRUE?
In its sub-arachnoid course, axons in the trochlear nerve: