What is a dermatome?

Question

Quizplus · Accepted Answer

A dermatome is a specific area of the body surface that is supplied by a single spinal or cranial nerve. It is an important concept in neurology and dermatology as it helps to diagnose the location of nerve damage based on sensory changes in specific dermatomes. Option A describes an aesthesiometer, which is used to measure the sensitivity of different areas of the skin. Option C is not accurate as spinal nerves and cranial nerves do not synapse with each other for somatosensory functions. Option D is incorrect as a dermatome refers to an area with a specific nerve supply, not just the number of touch receptors.

What Is a Dermatome