If cranial nerves : 12 pairs, then spinal nerves

30

pairs

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31

pairs

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32

pairs

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33

pairs

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Solution

The correct option is B $31$ pairs
The total number of spinal nerves is 31 pairs. These nerves arise from the spinal cord and are classified as 8 pairs of cervical, 12 pairs of thoracic, 5 pairs of lumbar, 5 pairs of sacral and 1 pair of coccygeal nerves.
Thus the correct answer is option B.

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