At the lower end, the 11 lumbar, sacral, and coccygeal dermatomes are often grouped together as the lower extremity dermatomes. A spinal nerve root is a bundle of nerve fibers that branches off ...

In general, dermatomes associated with your limbs run vertically along the long axis of the limbs, such as down your leg. Your dermatomes ... supplies sensation to, myotomes are the groups of ...