The coccygeal spinal nerve is designated Co1.

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Study for the Neurophysiology Test with flashcards and multiple choice questions, each with hints and explanations. Enhance your understanding of cell types, signals, and sensory pathways. Ace your exam!

Multiple Choice

The coccygeal spinal nerve is designated Co1.

Explanation:
Spinal nerves are named by the vertebral level at which they exit the spinal column, with an exception in the cervical region that explains why there are eight cervical nerves. In the sacrococcygeal region there is only one coccygeal nerve, which exits below the coccyx. That single coccygeal nerve is designated Co1. Therefore, Co1 is correct because there aren’t additional coccygeal nerves beyond this one. The other options would imply extra coccygeal nerves that don’t exist.

Spinal nerves are named by the vertebral level at which they exit the spinal column, with an exception in the cervical region that explains why there are eight cervical nerves. In the sacrococcygeal region there is only one coccygeal nerve, which exits below the coccyx. That single coccygeal nerve is designated Co1. Therefore, Co1 is correct because there aren’t additional coccygeal nerves beyond this one. The other options would imply extra coccygeal nerves that don’t exist.

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