Medical University of South Carolina Hospital logo
Home |  Video Library | Podcast Library | e-Newsletters | Classes & Events | About Us | News Blog | University & Colleges 
Contact Us | 843-792-1414
  

Patients & Visitors

Medical Services

Maps & Parking

Health Library

Physician Portal

Careers

Online Services
Health Library
Health Topics A to Z
Clinical Trials & Research
Drug Information
Tests & Procedures
Lab Tests & Results
Health Assessment Tools
Treatment Options
Symptom Checker
Health e-Newsletters
Podcast Library
Video Library
Health Library
Bookmark Page icon Bookmark |

Print this page icon

|

E-mail icon

Health Library : Dermatology

 

Anatomy of the Skin

Anatomy of  the skin
Click Image to Enlarge

Facts about the skin

The skin is the body's largest organ, covering the entire body. In addition to serving as a protective shield against heat, light, injury, and infection, the skin also:

  • Regulates body temperature
  • Stores water and fat
  • Is a sensory organ
  • Prevents water loss
  • Prevents entry of bacteria

Throughout the body, the skin's characteristics vary (for example, thickness, color, and texture). For instance, the head contains more hair follicles than anywhere else, while the soles of the feet contain none. In addition, the soles of the feet and the palms of the hands are much thicker than skin on other areas of the body.

The skin is made up of the following layers, with each layer performing specific functions:

  • Epidermis
  • Dermis
  • Subcutaneous fat layer
Epidermis The epidermis is the thin outer layer of the skin which consists of three types of cells:
  • Squamous cells. The outermost layer is continuously shed.
  • Basal cells.Basal cells are found just under the squamous cells.
  • Melanocytes. Melanocytes are found in every layer of the epidermis and make melanin, which gives the skin its color.
Dermis

The dermis is the middle layer of the skin. The dermis contains the following:

  • Blood vessels
  • Lymph vessels
  • Hair follicles
  • Sweat glands
  • Collagen bundles
  • Fibroblasts
  • Nerves

The dermis is held together by a protein called collagen, which is made by fibroblasts. This layer gives skin flexibility and strength. It also contains pain and touch receptors.

Subcutaneous fat layer

The subcutaneous fat layer is the deepest layer of skin and consists of a network of collagen and fat cells. It helps conserve the body's heat and protects the body from injury by acting as a shock absorber.

Click here to view the
Online Resources of Dermatology


 Sources & References

OUR SERVICES

 

RELATED INFORMATION

About This Site   |   Disclaimer   |  Privacy   |   Accessibility   |   Donations   |   Site Map
171 Ashley Avenue, Charleston, SC 29403 1.843.792.1414 | © 2014 Medical University of South Carolina

mobile web site iconrss feed iconText Messaging iconPodcast Library