Barium Enema with Air Contrast. Your doctor has requested a procedure called a barium enema with air contrast. This exam is performed to assess a change in bowel habits, abdominal pain or rectal bleeding, or if your doctor suspects that you may have diverticulitis (small inflamed areas in your colon) or polyps (growth of tissue on your colon).
Medial branch nerves are very small nerve branches that carry the pain message from the facet joints and the muscles around the joints.If the nerves are blocked or numbed, they will not be able to transfer the pain sensation from the joints to the brain.edial branch nerves are very small nerve branches that carry the pain message from the facet joints and the muscles around the joints.
Dorsal Nerve Root. Sections. A dorsal nerve root â also known as a posterior nerve root â is a main bundle of nerve fibers that branches off the spinal cord and goes to other areas of the body.Dorsal nerve roots are responsible for carrying signals of sensation (such as feelings of pain and temperature) from the body to the brain.orsal Nerve Root. Sections. A dorsal nerve root â also known as a posterior nerve root â is a main bundle of nerve fibers that branches off the spinal cord and goes to other areas of the body.