NEUR3112 Lecture Notes - Lecture 9: Dorsal Root Ganglion, Pseudounipolar Neuron, Anterior Grey Column
Document Summary
Sensory information is transmitted to the brain via dorsal root ganglion cells. Their cell body is located in the dorsal root ganglion (not in the cns) Morphology is pseudo-unipolar, with a branched axon projecting to the periphery and into the cns (spinal cord) Innervation of the body surface by the spinal nerves. The area of skin innervated by a single dorsal root ganglion is known as a dermatome. Dermatomes are an important diagnostic tool for localising the site of injury to the spinal cord or dorsal roots. Dermatomes can be clearly seen in shingles, caused by the herpes virus. As the virus erupts within a single dorsal root ganglion, it impacts on the sensory input arising for the region of skin that demarcates that dermatome. Neur3112 - systems neuroscience page 1 region of skin that demarcates that dermatome. Processing of somatosensory input in the spinal cord.
