By Makeyba thomas


A dermatologist is a doctor who specializes in treating conditions that affect the skin, hair, and nails.

Th Integumentary System

  1. The integumentary system is the organ system that protects the body from various kinds of damage, such as loss of water or abrasion from outside. The system comprises the skin and its appendages (including hair, scales, feathers, hooves, and nails).


  • Skin - the external covering of the body consisting of a superficial, thinner epidermis and a deep, thicker dermis that is anchored to a subcutaneous layer
  • Dermis -a layer of dense irregular connective tissue lying deep to the epidermis
  • Hypodermis - another name for the subcutaneous layer
  • Keratin - an insoluble protein that makes up hair and nails

  • Melanin - a dark black, brown, or yellow pigment found in the skin and hair

Structure of Integumentary system

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Function :

Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature
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Special feature:

The eccrine glands are sweat glands that are not connected to hair follicles. They function throughout life by responding to elevated body temperature due to environmental heat or physical exercise. These glands are common on the forehead, neck, and back, where they produce profuse sweating on hot days and when a person is physically active. They also are responsible for the moisture that may appear on the palms and soles when a person is emotionally stressed.

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Diseases of the integumentary system. Dermatologists specialize in treating diseases, disorders and injuries of the skin, hair and nails. They treat common conditions such as acne and warts; chronic skin conditions such as eczema and psoriasis; and more serious diseases like skin cancer


The integumentary system, formed by the skin, hair, nails, and associated glands, enwraps the body. It is the most visible organ system and one of the most complex. Diverse in both form and function—from delicate eyelashes to the thick skin of the soles—the integumentary system protects the body from the outside world and its many harmful substances. It utilizes the Sun's rays while at the same time shielding the body from their damaging effects. In addition, the system helps to regulate body temperature, serves as a minor excretory organ, and makes the inner body aware of its outer environment through sensory receptors.