NERVOUS SYSTEM SPECIAL SENSE
SPINALCORD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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II
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IV
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V
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VIII
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Detailed explanation-1: -What is the trochlear nerve? The trochlear nerve is one of 12 sets of cranial nerves. It is part of the autonomic nervous system, which supplies (innervates) many of your organs, including the eyes. This nerve is the fourth set of cranial nerves (CN IV or cranial nerve 4).
Detailed explanation-2: -Origin and course The trochlear nerve (CN IV) arises from the trochlear nucleus located within the periaqueductal gray substance of the midbrain and emerges on the dorsal midbrain caudal to the inferior colliculus. It then crosses the midline, before passing anteriorly around the contralateral side of the brainstem.
Detailed explanation-3: -S: sensory (olfactory nerve-CN I) S: sensory (optic nerve-CN II) M: motor (oculomotor nerve-CN III) M: motor (trochlear nerve-CN IV) B: both (trigeminal nerve-CN V) More items •02-Aug-2021