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 ...

You may have heard your practitioner mention something about your L4-L5 spinal segment. The lower back (lumbar spine) is a fairly complex structure. It consists of 5 vertebrates, the lowest is the ...

sensory loss in the L4 dermatome and the muscle power for the ankle dorsiflexion. To diagnose an L5 radiculopathy the clinician focused on the straight leg raise test, sensory loss in the L5 ...