Question

how is nerve formed???

Answer 1

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Each spinal nerve is a mixed nerve formed from the combination of nerve fibre from its dorsal and ventral roots the root is the afferent sensory and carries sensory information to the brain. The ventral root is the efferent motor root and carries motor information from the brain.

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Answer 2

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The nerve is formed by the combination of nerve fibers from the dorsaland ventral roots of the spinal cord (Figure 0). The dorsal roots carry afferent sensory axons, while the ventral roots carry efferent motor axons . The thoracic, lumbar, and sacral nerves are then numbered by the vertebra above.
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