Good news if you already consume tuna on a regular basis, itâs high in niacin compared to many other foods. Itâs also a good source of omega-3s as well as protein. There are concerns about the mercury content, so you may not want to rely on tuna for your daily niacin consumption, but itâs nice to have once in awhile. Serving Size (100 grams), Niacin (5.8milligrams), 184 calories.
At the end of the spinal column is the coccyx or tailbone. Most people have 33 vertebrae in total, although there may be 32 or 34. Variations are usually found in the lumbar or sacral regions.
The conus medullaris is the technical name for the lower end of the spinal cord. Originating at the base of the brain, this thick bundle of nerve tissue passes through the center of the spinal column, penetrating the vertebrae, which protect it from damage.onus medullaris is the is the technical name for the lower end of the spinal cord. Damage to the conus medullaris may cause pain in the lower back.