CHAPTER V:
INTEGUMENTARY
SYSTEM
Integument means covering. The integumentary system can
make up as much as 15% of the total body weight. So basically,
integumentary system covers our body and largest
of the body's organ systems and one of the most important. It is our
first protection against bacteria, viruses and other microorganism. Integumentary
also includes our hair and nails. Just imagine if we don’t have skin, nails and
hair?! We will look like aliens. It also improves our physical looks. People
don’t see us through our liver, kidney, lungs etc. but instead on our outer
covering. Integumentary also includes our hair and nails.
Here are some of the important terms in integumentary system.
1. Epidermis- most superficial layer of the skin.
>Cells of the Epidermis:
-Keratinocytes
-Melanocytes
-Merkel Cells
-Langerhans’ Cells
2. Dermis- this is where the epidermis rests.
3. Subcutaneous Tissue- Located between the dermis, it contains
collagen and elastin fibers.
4. Hairs- columns of dead, keratinized epithelial cells.
5. Nails- stratum corneum containing hard keratin.
I will not state
more. These are the basic terms in
integumentary system.
Here is an animation video that will help you to further understand integumentary system:
One of the roles of the integumentary system is the elimination of waste. Waste
materials can be secreted through the skin to speed elimination, which explains
why sometimes people have sweat which smells unusual, as their bodies are
expressing waste materials.
Protection can be destroyed too like
when the person burns, it is an injury to the tissue caused by heat. It has
degrees depending on depths, First, second and third degree burns. This will
take a long time to heal. And sadly, your skin will not go back to its normal
skin. Vicky Belo is the answer!
PIMPLES! Oh! Every individual
hates it! Nobody wants to have a pimple or acne. It is an inflammation of the
hair follicles and sebaceous glands. Some are caused by bacterium in the skin.
Mostly, this increases during puberty.
Skin Cancer is the most common
type of cancer. It is when the skin is exposed to too much UV rays.
One of the scariest thing that
will happen to our lives is AGING! Who wants to get old? The fact that you will
not be able to do some activities that you can do before, SKIN is one of the
problem. As you can see, many celebrities spent most of their money in
reconstructing their skin! Especially women, they want to buy all of the
anti-aging products that they see on every beauty store or products that are
advertised.
Take this quiz! Just for funJ
And learn more!
End of Chapter 5
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