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 spinal cord ends with the conus medularis. Nerves still exit from the spine below this level. In an embryonic infant, the spinal cord is the full length of the spine, but as the fetus develops, the spinal cord also develops to terminate in the L1/L2 region.See the links for more information.he spinal cord ends with the conus medularis. Nerves still exit from the spine below this level. In an embryonic infant, the spinal cord is the full length of the spine, but as the fetus develops, the spinal cord also develops to terminate in the L1/L2 region. See the links for more information.