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 Block. The medial branch nerves are small nerve branches that transmit pain from the facet joints (small joints between vertebrae). The nerves do not control any muscles or sensation in your arms or legs.They are located along a boney groove in your back and neck.edial Branch Block. The medial branch nerves are small nerve branches that transmit pain from the facet joints (small joints between vertebrae). The nerves do not control any muscles or sensation in your arms or legs.
The purpose of the sensory nerve fibers is to send signals from the  sense organs to the central nervous system. This keeps the brain  well informed as to what is going on s â¦ o the brain can help prevent  pain and burns.he purpose of the sensory nerve fibers is to send signals from the  sense organs to the central nervous system. This keeps the brain  well informed as to what is going on s â¦ o the brain can help prevent  pain and burns.