Pregunta
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Which of the following cranial nerves innervates more than one mo
eyeball?
trochlear nerve
facial nerve
abdulomotor nerve
abcens nerve

Ask by Bowman Bernard. in the United States
Mar 21,2025

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The oculomotor nerve (CN III) innervates more than one eyeball.

Solución

To determine which cranial nerve innervates more than one eyeball, let’s analyze the options provided:
  1. Trochlear Nerve (CN IV): This nerve innervates the superior oblique muscle of one eye.
  2. Facial Nerve (CN VII): This nerve primarily innervates muscles of facial expression and does not innervate any extraocular muscles.
  3. Oculomotor Nerve (CN III): This nerve innervates several muscles of the eye, including the superior rectus, inferior rectus, medial rectus, and inferior oblique muscles. Therefore, it innervates more than one eyeball.
  4. Abducens Nerve (CN VI): This nerve innervates the lateral rectus muscle of one eye.
Based on this analysis, the Oculomotor Nerve (CN III) is the cranial nerve that innervates more than one eyeball.

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Beyond the Answer

The cranial nerve that innervates more than one eyeball is the abducens nerve. Specifically, it controls the lateral rectus muscle of the eye, which is responsible for outward eye movement. But here’s a twist—it’s not just a lone ranger! The oculomotor nerve and the trochlear nerve also team up to control various eye muscles, showcasing a beautiful dance of collaboration in our cranial nerve system!
When it comes to eye movements, the coordination between these nerves is crucial for tracking objects and maintaining binocular vision. Any disturbances in these nerves can lead to double vision or difficulties with gaze, reminding us just how complex and fascinating our cranial nerve network really is!

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