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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.
Each autonomic ganglion, such as the celiac ganglion, forms a plexus of nerve fibers that extend to the organs of the abdomen and pelvis to control their function. The parasympathetic division of the ANS is also represented in the abdomen and pelvis through the vagus nerve and the sacral nerves. The vagus nerve is a cranial nerve that wanders from the base of the brain parallel to the spinal cord to stimulate digestion in the liver, stomach, and intestines.