Transcript Skin progect

THE INTEGUMENTARY SYSTEM
THINK
Think about your skin. What is it made of? Whats it's
function on the human body? Discuss this with a
partner for 2 minutes.
INTRODUCTION TO SKIN
VOCAB

Melanin

Dermis

Epidermis

Sweat Gland/Oil Gland ( apocrine, eccrine, and
sebaceous glands)
Skin




The Skin is an organ and is made of cells.
An organ is classified as two or more layers of
tissues.
The skin is made up of two layers the epidermis and
the dermis.
Your skin loses 1 million skin cells every 40 minutes
to prevent disease.

It has glands that keep your skin cool and smooth.

It also has special glands for your skin color.
Skin




Basically the skin is a sheet like structure that
encloses our bodies.
Our skin is like a natural shock absorber. Thousands
of scrapes and bumps go unnoticed each day.
Serious injuries to the skin happens in the inner
layer. Your reaction is a quick “OUCH!”
After the injury the dead skin cells replenish
themselves.
THE SKIN'S ANATOMY
ANATOMY





The first layer of skin is the epidermis the second
layer is the dermis.
The dermis is where the sweat glands are located.
The hair root is also located in the dermis.
The other sweat glands are located near the hair
shaft
Also located in the dermis are all of the skins nerves.
As you can tell most of the skins anatomy is located
in the dermis.
OILED,COOL, AND MOISTENDED




If it wasn't for all the oil and sweat glands our skin
would be a piece of leather.
Healthy skin is covered with a watery, greasy film.
This film protects the skin against over wetting,over
drying, overheating, and under cooling.
The oil portion of the film is secreted by the
sebaceous glands.
The water portion is created in the apocrin and
apocrin glands
OILED,COOL, AND MOISTENDED




Two of these glands are located near the hair
shaft(apocrin and the eccrine) . The sweat gland is
located in the dermis.
The sebaceous gland produces the oil to keep your
skin smooth.
The sweat gland produces sweat to keep your self
cool.
You can sweat 8 quarts of sweat when exercising.
Skin Color
Ex. you left for summer vacation a month ago. When
you returned your friends noticed your skin got
darker.

There was actually an entire process that made him
darker.

Melanin is a pigment

Melanin is located deep in the cell layers.

When your friend was exposed in the sun melanin
absorbed the suns rays.
Skin Problems




When people have acne it could be for many
reasons. It could be caused by dirt, contagion, or
filthy living conditions not grease or candy.
Acne is more frequent when puberty takes place.
Another skin problem is Blisters. Blisters appear
when the underlying layers become separated from
the outer layer. Fluids fill the space in between.
Boils are bacteria called Staphylococci. They
establish themselves in the oil glands near the hair.