Full Dermatome Zones (Anterior) Description
[Continued from above] . . . of nerve reception of sensory impulses. The pattern of the dermatome is of major clinical significance when a physician desires to anesthetize a particular portion of the body. As certain areas of the body are much more sensitive than others, it is sometimes necessary to block more than one dermatome to produce a desired result. Because adjacent dermatomes overlap in the arms, legs, groin and buttocks areas, at least three spinal nerves must be blocked to achieve a loss of feeling in these regions.