Cranial nerves
Updates to Article Attributes
Body
was changed:
The cranial nerves are the 12 paired sets of nerves that arise from the cerebrum or brainstem and leave the central nervous system through cranial foraminae rather than through the spine.
Cerebrum
The first and second cranial nerves derive from the telencephalon and diencephalon respectively and are considered extensions of the central nervous system:
Midbrain
The third and fourth cranial nerves originate from the midbrain:
Pons
The middle four cranial nerves originate from the pons:
- trigeminal nerve (CN V)
- abducens nerve (CN VI)
- facial nerve (CN VII)
- vestibulocochlear nerve (CN VIII)
Medulla oblongata
The final four cranial nerves originate from the medulla oblongata:
- glossopharyngeal nerve (CN IX)
- vagus nerve (CN X)
- accessory nerve (CN XI)
- hypoglossal nerve (CN XII)
In adults, the brainstem nuclei are located within the tegmentum, the posterior section of the brainstem (except in the midbrain where the quadrigeminal plate is most posterior).
See mnemonic for cranial nerves.
-<p>The <strong>cranial nerves</strong> are the 12 paired sets of nerves that arise from the <a href="/articles/brain">brain</a> or <a href="/articles/brainstem">brainstem</a> and leave the <a href="/articles/central-nervous-system">central nervous system</a> through <a href="/articles/cranial-foramina">cranial foraminae</a> rather than through the spine. </p><h4>Cerebrum</h4><p>The first and second cranial nerves derive from the <a href="/articles/telencephalon">telencephalon</a> and <a href="/articles/diencephalon">diencephalon </a>respectively and are considered extensions of the central nervous system:</p><ul>- +<p>The <strong>cranial nerves</strong> are the 12 paired sets of nerves that arise from the <a title="Cerebrum" href="/articles/cerebrum">cerebrum</a> or <a href="/articles/brainstem">brainstem</a> and leave the central nervous system through <a href="/articles/cranial-foramina">cranial foraminae</a> rather than through the spine. </p><h4>Cerebrum</h4><p>The first and second cranial nerves derive from the <a href="/articles/telencephalon">telencephalon</a> and <a href="/articles/diencephalon">diencephalon </a>respectively and are considered extensions of the central nervous system:</p><ul>
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