Question

How do spinal nerves exit the spinal cord?

Answer 1

These nerves are divided into 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal nerve (Figure 3.2). Dorsal and ventral roots enter and leave the vertebral column respectively through intervertebral foramen at the vertebral segments corresponding to the spinal segment.

Answer 2

The spinal nerves exit the cervical spine above their corresponding vertebral body level. For example, the C7 nerve root exits above C7 through the C6-C7 neural foramen. ... With the exception of C1, each segment has a vertebral body, which is the anterior portion of the vertebral segment.

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