doesn’t provide sensory function. 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 ...

Although nerve-root section in this patient was presumably restricted to third-division fibers, vesicles appeared in the dermatome of ... all but 1 after trigeminal sensory-root section, with ...