A dermatome refers to an area of skin supplied and innervated by a single spinal nerve root. Spinal nerves are part of the peripheral Learn with Osmosis Dermatomes are areas of skin that receive sensations from sensory nerves exiting the spinal cord. Sensory nerves provide the feeling of hot, cold, pain, etc. There are 7 cervical, 12 thoracic, 5 lumbar, and 1 coccygeal nerve dermatomes . Doctors use dermatomes to help diagnose diseases and conditions. Myotomes is a group of single spinal nerves that originate from groups of muscles. Dermatomes clinical significance Neurological evaluation of dermatomes helps to assess radiculopathy or neurologic deficits as radicular patterns can suggest specific spinal nerve involvement. For example, sciatica, will often present along the dermatome of the involved spinal nerve 3. The surface anatomy of dermatomes and sensory examination play crucial roles in assessing and diagnosing various medical conditions. Understanding the distribution of dermatomes and conducting sensory examinations are essential in identifying and ...
