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Additional
trochlear nerve
English Wikipedia - The Free Encyclopedia
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Trochlear nerve
The
trochlear nerve
, also called the
fourth cranial nerve
or
cranial nerve IV
, is a
motor nerve
(a
somatic
efferent nerve) that innervates only a single muscle: the
superior oblique muscle
of the eye, which operates through the
pulley
-like
trochlea
.
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