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There are 31 bilateral pairs of spinal nerves, named from the vertebra they correspond to. For the most part, the spinal nerves exit the vertebral canal through the intervertebral foramen below their corresponding vertebra.
Spinal nerves are large nerves that are distributed evenly along the spinal cord and the spine. The spine is a column of vertebrae bones that protects the spinal cord. These spinal nerves are large as they are formed by both sensory and motor nerve roots merging together.
The spinal nerves are relatively large nerves that are formed by the merging of two nerve roots: a sensory nerve root and a motor nerve root. Sensory nerve roots emerge from the back of the spinal cord and the motor nerve roots from the front of the spinal cord.
Spinal nerves are all mixed nerves with both sensory and motor fibers. Spinal nerves emerge from the spinal cord and reorganize through plexuses, which then give rise to systemic nerves. Thoracic spinal nerves are not part of any plexus, but give rise to the intercostal nerves directly.
Spinal nerve, in vertebrates, any one of many paired peripheral nerves that arise from the spinal cord. In humans there are 31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. Each pair connects the spinal cord with a specific region of the body.
A spinal nerve is a mixed nerve, which carries motor, sensory, and autonomic signals between the spinal cord and the body. In the human body there are 31 pairs of spinal nerves, one on each side of the vertebral column. [1][2] These are grouped into the corresponding cervical, thoracic, lumbar, sacral and coccygeal regions of the spine. [1] .
The spinal cord is a tubular bundle of nervous tissue and supporting cells that extends from the brainstem to the lumbar vertebrae. Together, the spinal cord and the brain form the central nervous system. In this article, we shall examine the macroscopic anatomy of the spinal cord – its structure, membranous coverings and blood supply.