spinal cva - HEALTHY
Spinal stenosis is the narrowing of one or more spaces within your spinal canal. It causes symptoms like back or neck pain and tingling in your arms or legs. Spinal stenosis happens when the space inside the backbone is too small.
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This can put pressure on the spinal cord and nerves that travel through the spine. Spinal stenosis happens most often in the lower back and the neck. Some people with spinal stenosis have no symptoms. Others may experience pain, tingling, numbness and muscle weakness.
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The center of the spinal cord is hollow and contains a structure called the central canal, which contains cerebrospinal fluid. The spinal cord is also covered by the meninges and enclosed by the neural arches. Together, the brain and spinal cord make up the central nervous system. With spinal stenosis, open spaces within your spine get narrower and pinch your spinal cord and the nerves around it. This can cause pain, numbness, and other issues.
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The entire spinal column consists of 33 individual bones called vertebrae, plus two sections of naturally fused vertebrae – the sacrum and the coccyx – located at the very bottom of the spine. The spinal cord is part of the central nervous system. It relays sensations to the brain and allows the brain to control movements and function of the internal organs, trunk, and arms and legs. The vertebral column is also known as the spinal column or spine (Figure 1). It consists of a sequence of vertebrae (singular = vertebra), each of which is separated and united by an intervertebral disc. Together, the vertebrae and intervertebral discs form the vertebral column.
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