Dermatomes and major cutaneous nerves.
In human anatomy, cutaneous nerves are primarily responsible for providing sensory innervation to the skin. In addition to sympathetic and autonomic afferent (sensory) fibers, most cutaneous nerves also contain sympathetic efferent (visceromotor) fibers, which innervate cutaneous blood vessels, sweat glands, and the arrector pilli muscles of hair follicles. These structures are important to the sympathetic nervous response.
There are many cutaneous nerves in the human body, only some of which are named. Some of the larger cutaneous nerves are as follows:
- In the arm (proper)
- In the forearm