The Skin System and its function
The Skin System
The skin is the largest organ of the body!
The organ of the skin system is the skin itself. Totally covering the body, it is
the largest organ of the human body. The skin provides a tough covering
preventing the passage of bacteria, fungi, water and most chemicals into the
The skin organ consists of:
- The skin it self
- Hair – found on ever
part of the body expect Palms and soles of the Feet.
- Nails – grow 1
millimeter a week and take 8months to grow completely.
- Melanine – is a pigment
produced in the skin, it can color the skin brown, black, yellow depending on
racial origin. Sunlight increases the production of melanine, which is also
affected bby skin thickness and blood supply.
The Function of the Skin:
- Provides a water proof
covering protecting the body
- Helps regulate body
- Excretes fluid
- Manufactures vitamin D
- Produce hair and an
oil called sebum.
The Skin has two layers
the layer of dead cells which acts as a water proof covering coat and a
germ proof barrier
the sweat glands blood capillaries, muscles, hair follicles and nerve