Functions of Skin


 
 
Concept Explanation
 

Functions of Skin

Skin :-The body's outer covering, which protects against heat and light, injury, and infection. Skin regulates body temperature and stores water, fat and vitamin D.

Functions of skin :

Controlling Body Temperature :

The skin does a fantastic job of controlling body temperature and keeping it stable. It does this in two ways : through sweating and changes in blood flow, depending on the temperature of the the air around us. If we are in a hot climate, our body releases sweat from glands in the skin.

Storing Blood :

The skin acts as a reservoir to store blood. Within the thin layer of the skin are lots of blood vessels which, at rest, hold somewhere between 8 - 10 % of the total blood in the body.

Protection :

Our bodies are covered in one big protective coating. the skin protects us from the outside world and much of  what it throws at us. Our skin  is made up of very tightly packed, minuscle cells that produce a hardy protein known as Keratin.

Sensation :

Within the layers of our skin there are thousands of tiny structures known as receptors, which help us to detect sensation. Nerve endings do a similar job.

Absorption And Excretion :

Absorption refers to the movement of substances from the outside world, through the skin and into our bodies. We can absorb certain vitamins, drugs, gases, as well as many other substances through our skin.

Vitamin D Production :

We need Vitamin D for many processes in the body and skin is active in it's production. Vitamin D is produced when he sun's UV rays hit our exposed skin.

 
 


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