describe componants of the spinal nerve in the animal nervous system
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all the spinal nerves are composed of both sensory and motor fibers (mixed nerves). There are eight cervical, twelve thoracic, five lumbar, five sacral nerves and one coccygeal nerve (all in pairs), each one emerging out of their corresponding intervertebral foramina (bony openings) of the vertebral canal.
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Thus, all the spinal nerves are composed of both sensory and motor fibers (mixed nerves). There are eight cervical, twelve thoracic, five lumbar, five sacral nerves and one coccygeal nerve (all in pairs), each one emerging out of their corresponding intervertebral foramina (bony openings) of the vertebral canal.
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