Question

Pairs of spinal nerves present in human beings are

• A. 31 pairs
• B. 12 pairs
• C. 24 pairs
• D. 10 pairs

Answer 1

The correct option is A

31 pairs

The correct option is A.

Explanation of the correct option:

1. Spinal nerves are nerve fibers connected to the spinal cord that carry information from and away to the spinal cord.
2. They consist of 31 pairs of spinal nerves that connect the spinal cord to the periphery.
3. They include 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal nerves.

Explanation of the incorrect option:

Option B:

The number of cranial nerves present in man is 12 pairs.

Option C:

There are totally 24 cranial nerves in number and not 24 pairs.

Option D:

There are 10 pairs of cranial nerves present in Amphibia.

Final answer: Pairs of spinal nerves present in human beings are 31 pairs.