Stephen J. Schueler, M.D.

Overview Symptoms Evaluation Treatment specialist tetanus Home Care pain in adults pain in children warning signs Outlook Complications Anatomy

Skin Scrape Anatomy

To better understand abrasions, it helps to understand the anatomy of the skin.

The skin contains three main layers:

  • Epidermis:
    • The superficial layer that makes up the surface of the skin
    • It is composed of skin cells and can be divided into 5 layers based on cell type.
    • The top layer of the epidermis, the stratum corneum, is made of dead, flat skin cells that shed about every 2 weeks.
    • The thickness of the epidermis varies, according to location: it is very thick over the soles of the feet, and very thin over the ears.
  • Dermis:
    • Lies beneath the epidermis
    • Also varies in thickness depending on the location of the skin. It is .3 mm on the eyelid and 3.0 mm on the back.
    • The dermis is composed of 2 layers that contain a connective tissue called collagen
    • The dermis contains blood vessels, nerves, sweat glands, and hair follicles.
    • The number of structures in the dermis varies, according to location.
    • The dermis under the arms contains more sweat glands and hair follicles than the dermis on the back.
  • Subcutaneous layer:
    • Mainly fat and connective tissue.
    • Contains blood vessels and nerves.

Last Updated: Nov 22, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
Copyright DSHI Systems, Inc. Powered by: FreeMD - Your Virtual Doctor

PubMed Skin Scrape References
  1. Hess CT. The art of skin and wound care documentation. Adv Skin Wound Care. 2005 Jan-Feb;18(1):43-53. [15714037]
  2. Moulin V, Auger FA, Garrel D, Germain L. Role of wound healing myofibroblasts on re-epithelialization of human skin.Burns. 2000 Feb;26(1):3-12. [1063031]
  3. Norman D. The effects of age-related skin changes on wound healing rates. J Wound Care. 2004 May;13(5):199-201. [15160575]
  4. O'Dell ML. Skin and wound infections: an overview. Am Fam Physician. 1998 May 15;57(10):2424-32. [9614412]
FreeMD is provided for information purposes only and should not be used as a substitute for evaluation and treatment by a physician. Please review our terms of use.