epidermis - the outermost part of
the epidermis is composed of dead skin
cells and keratin making the skin waterproof.
dermis - the middle layer of
the skin contains a type of cholesterol
that produces Vitamin D when exposed to
sebaceous gland - secretes
oil (sebum) in the hair follicles to lubricate
the skin and hair. erector pili muscle - causes
the hair to stand on end (resulting in
"goose bumps") in response to
cold and fright.
hypodermis - the body's natural
insulation containing subcutaneous fat
which also provides nutrition to the upper
is actually a human organ - the largest in the body, in fact.
composed of three different layers, the epidermis, the dermis,
and the hypodermis, all of which work collectively to help
the skin perform its many functions.
How your skin protects you
The first, and what most would consider the most important
function of the skin is to wrap up our internal organs, fluids,
and everything else that keeps our bodies working to protect
it from the outside world.
Like the insulation in our homes, the skin also acts to regulate
our internal temperature. Additionally, the skin plays a pivotal
role in synthesizing vitamin
D which like a hi-tech solar panel generates the essential
nutrient when exposed to the sun.
Skin care and health tips
While there are a huge variety of skin
care products on the market to protect against common
skin problems like acne
there are some simple, easy measures that can be taken to
keep skin healthy and youthful looking that most of us overlook.
One of the most important things that anyone can do for their
skin is to protect it from the sun to avoid sunburn
or serious diseases such as melanoma
or cancer of the skin.
Staying out of the sun during peak
hours, wearing protective clothing, and using sunscreen
are all important to avoiding skin damage, especially during
the summer months.
mind though that the skin is also responsible for synthesizing
vitamin D, and so many skin care professionals do endorse
a limited amount of sun exposure, but only during non-peak
hours of the day. In
colder weather, indoor humidifiers and skin moisturizers helps
skin strong and supple through the winter months.
More about human skin around the Web:
- Wikipedia - Complete overview with facts & information
on skin layers and functions, tips on skin health care and
hygiene, with related resources and references.
Skin - Kid-friendly information with names of skin
layers and their functions with related hygiene tips, from