单词	trochlear nerve
释义	trochlear nerve noun : either of the fourth pair of cranial nerves that supply some of the eye muscles with motor fibers called also trochlear Word History First Known Use circa 1858, in the meaning defined above Medical Definition trochlear nerve noun : either of the fourth pair of cranial nerves that arise from the dorsal aspect of the brain stem just below the inferior colliculus and supply the superior oblique muscle of the eye with motor fibers
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