Integumentary System

• Integumentary System is the:

  • Tenth (10th) and final body system
  • it is composed of the skin and all structures derived from the skin.
• Derived structures from the skin:

  1. hair
  2. nails
  3. sweat and oil glands
• Skin

  • an organ that is essential to life.
  • it is the LARGEST ORGAN OF THE BODY.
  • It covers a surface area of approx. 7,620 cm$^2$
  • It constitutes 8% of total body mass in the average adult.
• Five (5) functions of the IS:

  1. Regulate body temperature
  2. Protect the body, within limits, against microbial invasion and mechanical, chemical, and ultraviolet (UV) radiation damage.
  3. Eliminate waste products through perspiration.
  4. Receive certain stimuli such as temperature, pressure, and pain.
  5. Synthesize certain vitamins and biochemicals such as Vitamin D.