Question

Name the spinal nerves (number per region)

A. Cervical region: 8, Thoracic region: 12, Lumbar region: 5, Sacral region: 5
B. Cervical region: 7, Thoracic region: 12, Lumbar region: 5, Sacral region: 5
C. Cervical region: 8, Thoracic region: 10, Lumbar region: 5, Sacral region: 4
D. Cervical region: 7, Thoracic region: 10, Lumbar region: 5, Sacral region: 4

Answer 1

The spinal nerves are named based on the level of the spinal cord where they emerge. There are 31 spinal nerves in total, with different numbers in each region. The cervical region has 8 pairs, the thoracic region has 12 pairs, the lumbar region has 5 pairs, and the sacral region has 5 pairs.

Step-by-step explanation:

The spinal nerves in the human body are named based on the level of the spinal cord where they emerge from. There are a total of 31 spinal nerves. In the cervical region, there are 8 pairs of nerves designated C1 to C8. In the thoracic region, there are 12 pairs of nerves designated T1 to T12. In the lumbar region, there are 5 pairs of nerves designated L1 to L5. In the sacral region, there are 5 pairs of nerves designated S1 to S5. There is also one pair of coccygeal nerves.