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Cervical spinal stenosis is the narrowing of the spinal canal in the neck. The spinal canal is the open area in the bones (vertebrae) that make up the spinal column. The spinal cord is a collection of nerves that runs through the spinal canal from the base of the brain to the lower back. These nerves allow us to feel, to move, and to control the bowel and bladder and other body functions.
It holds your head and body upright and allows you to bend and twist your body. It also offers protection to your spinal cord - a large bundle of nerves that runs through the cavity in the centre of your spine that relays messages between your brain and the rest of your body.