MEDICINE
NEUROLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Abducens nerve is the cranial nerve that arises from which part of the brainstem?
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Diencephalon
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Mesencephalon
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Rostral medulla oblongata
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Caudal medulla oblongata
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Explanation:
Detailed explanation-1: -Cranial nerves that exit the medulla are (from caudal to rostral) the hypoglossal (XII), accessory (XI), vagus (X), and glossopharyngeal (IX). The cranial nerves exiting at the pons–medulla junction are (from medial to lateral) the abducens (VI), facial (VII), and vestibulocochlear (VIII).
Detailed explanation-2: -The abducens nerve originates from neuronal cell bodies located in the ventral pons. These cells give rise to axons that course ventrally and exit the brain at the junction of the pons and the pyramid of the medulla.
There is 1 question to complete.