Function of the skin

Did You Know: Functions of the Skin

The skin not only gives us our appearance and shape, it also serves other important functions:

Protection from

mechanical impact (i.e. pressure, stroke)
thermic impact (i.e. heat, cold)
chemical impact (i.e. acids)
microorganisms (bacteria, viruses, fungi)
UV-radiation
water loss

Immune function
Besides providing a biological barrier against microorganisms through its acidic pH-value, the skin is immunologically active through defense mechanisms in epidermis and dermis.

Temperature regulation
Through sweat-producing glands and the evaporation of sweat and water, the body temperature is controlled. Another mechanism for rapid cooling is vasodilation (widening of blood vessels). Through vasoconstriction (narrowing of blood vessels), heat loss is prevented.

Sensation
Through nerve endings and receptors in the skin, sensations such as touch, pain, heat or cold are processed.

Vitamin production
The skin produces Vitamin D through exposure to ultraviolet radiation in sunlight.

Social-interactive
Through paling, blushing and other expressions regulated by the autonomic nervous system, the skin serves as a communication system.

Advertisements

Posted on July 9, 2012, in Uncategorized and tagged , , , , , , , . Bookmark the permalink. Leave a comment.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: