Back to Student Lounge Articles

Dermatome Chart! (Multimedia)

multimed.gif (64x64 -- 0 bytes)

dermatomes.gif (53577 bytes)

Click on the thumbnail to view a multimedia presentation on dermatomes.


Dermatome is Greek word which literally means "skin cutting".

A dermatome is an area of the skin supplied by nerve fibers originating from a single dorsal nerve root.

A knowledge of  the dermatome map is essential in order to recognize nerve root damage or radiculopathy. Radiculopathy is suspected when there is loss of sensation in a dermatome. The following are key dermatomes and should be learnt:

C6 at the thumb.

T4 at the nipple.

T10 at the umbilicus.

L5 at the top of the foot.

S1 at the bottom of the foot.

S2-S4 at the perineum.

Click here to view a picture of the dermatome map.

Related topics

Are you a Doctor, Pharmacist, PA or a Nurse?

Join the Doctors Lounge online medical community

  • Editorial activities: Publish, peer review, edit online articles.

  • Ask a Doctor Teams: Respond to patient questions and discuss challenging presentations with other members.

Doctors Lounge Membership Application

Tools & Services: Follow DoctorsLounge on Twitter Follow us on Twitter | RSS News | Newsletter | Contact us