Functions of the skin
Our skin is more or less waterproof. It is self healing and self replacing. Skin is capable of becoming thicker if exposed to wear and tear e.g. skin on the soles of our feet. Our skin becomes darker in colour to protect against excessive sunlight. Even after burning our skin in the sun, the burnt skin peels off and is replaced by a new layer of skin. Skin is vitally important in the production of vitamin D. The skin plays a vital role in the regulation of our body temperature, as;
· It is a protective covering.
· It excretes waste products.
· It regulates temperature.
· It contains ergo sterol which, under the
influence of ultra-violet light, forms vitamin D.
· It is an important sensory organ.
· It is important for the maintenance of body shape.
· It protects against the entry of harmful organisms.
Immediately underneath the skin lies the superficial fascia. Underneath the superficial fascia lies the deep fascia. These tissues are closely related to the skin and play an important role in the mobility of the skin over the underlying structures.
