Health Ed.

Personal appearance is very important to teenagers today.

Society’s most advertising suggest that being physically attractive is more important than being intelligent or skilled

Teenagers become very self conscious because of the onset of acne, and puberty, squeaky voices.

First impression often based on appearance

Organ- a group of cells that perform a function.

Your skin is your largest organ with it being 15% of your weight.

List the three layers of skin1. Epidermis2. Dermis3. Subcutaneous

Thin outer layer of skin about as thick as a piece of paper.

Made up of several layers of cellsNew cells force old cells to the

surface or your skin.These old cells are dead and you will

shed them every 28 days.

With in the epidermis are living cells which produce MELANINE.

MELANINE- a pigment which gives skin its color, the more melanine the darker your skin.

List the Three Functions of Melanine: 1. gives skins its color 2. Blocks UV

rays 3. Forms freckles Pores- Tiny openings on the skins

which allows sweat and oil to escape.

Inner layer of skin which is 30 times thicker than epidermis.

Contains most of the living structures or your skin such as blood cells- which brings oxygen and nutrients to your body.

Also in the dermis are SEBACEOUS GLANDS – release an oil called Sebum that makes your skin soft, You have very few sebaceous glands on the palms of your hand or soles of your feet ( FYI also contains an acid that kills bacteria)

Also in the dermis are SWEAT GLANDS- which produce perspiration- a body fluid that contains salt and water.

You have 2 to 3 million sweat glands.

There are two functions of sweat glands-1. Cools our body down so we do not over

heat2. Gets rid of waste

Subcutaneous Layer – is the layer of skin that connects your body to your skin. All or your fat cells are located here.

There are four functions are skin has-1. Regulates Temperature- Sweat glands

work with tiny blood vessels that expand and allow more blood to come to the surface release heat and cool the body

2. Removes Waste 3. Protection-shields delicate organs 4. Sensation- hot cold pain

Treating skin problems- Skin problems are a very common problem either through are or through bacteria germs

Dermatologist- A doctor who treats skin disorder

Acne- a natural development in the body in which the oil gland becomes infected

Acne…. Extra sebum from the sebaceous gland causes black heads and pimples.

For many years doctors thought greasy foods and chocolates caused acne; food has very little to do with acne. The male hormone Testosterone stimulates the sebaceous gland to produce sebum girls have lower levels of this hormone and possibly less acne.

Boil- Skin infection caused by bacteria a hard red lump treatment- wet hot compression

Athletes Feet- A painful fungal infection skin becomes red, flaky and itchy. Treatment of this would be to dry your feet well, use antifungal cream

Burns- destroy the skin and affect the body’s ability to fight infections.

First Degree burn- injure only the epidermis like a sunburn.

Second Degree burn- injure the epidermis and part of the dermis, swelling and blistering are involved.

Third Degree burn- all three layers are burned and affects the tissue underneath.

Treatments for 1st and 2nd degree burns- submerge the burning part in cool water keep elevated

Treatments for 3rd degree burns- Do not remove the clothing do not used water or ice watch for shock and get to hospital.

Sun Tan- When you are working on your tan your skin must produce pigment which means there is damage to the skin. When you are young your cells are forming and are more vulnerable to damage unfortunately you spend more time out side when you are young.

Sun exposure is the main cause of skin cancer 700,00 new cases a year. The sun damages your DNA (genetic make up).

Tanning occurs when the pigments are stimulated from the sun Melanin absorbs the ultra violet rays. OZONE MAY ALSO PLAY A ROLE IN MORE CASES.

When sun tanning, you need to keep in mind there are 700,00 cases of skin cancer each year,

Most vulnerable for cancer are fair skin people

People who live in SUN belt statesKeep eye on moles that increase in

size and change color or crackOzone Layer could be an issue to?

Teeth- Each tooth has three main parts1. Crown- Part of the tooth that you see2. Neck-just below the gum3. Root- Part of the tooth just below the

gum line

There are also three types of teeth 1. Incisors- Sharp front teeth used to cut

food2. Canines- Pointed teeth that tear food

into small pieces3. Premolars- Combo of ripping and

grinding4. Molars- Large teeth in the back used to

grind food.

The most common dental problem is gum disease and decay.

Cavity- Holes in the enamel cause by decay

Periodontal Disease- Disease of the gum

3 steps to keep your teeth healthy1. Brush and floss daily2. Use fluoride toothpaste3. Regular check up at the dentist

Sclera-the tough white part of the eyeCornea-a transparent tissue that bends

and focuses light before it enters the lensChoroid-a thin structure that lines the

inside of the scleraRetina-the light-sensitive membrane on

which images are cast by the corneaLens- Aligns the lightPupil-Regulates amount of light

70 percent of the sensory information your brain recieves comes from your eyes.

Function of the eye is to gather light, form an image, and sent information to the brain.

A layer of fat surronds each eyeball(LOL) and cushions it inside a socket.

On average most humans blink 6,205,000

If you want to have healthy eyes here are some steps:1. Follow a well-balanced diet- eat foods that

have Vitamin A. Without it, you could get night blindness or start to see less in dim light.

2. Protect your eyes- Wear Saftey googles when do activities were your eyes could be in danger

3. Have regular eye exams- do be dumb, go get them checked

4. Rest your eyes- go to sleep, get off the phone!!!

Snellen- Eye Chart 20/20 Vision is what you want

First number is how far you stand from snellen chart

Second Number is how far someone with normal vision stands to read what you can read at 20 feet

Optometrist- Fit you for glassesOphthalmologist- A doctor who can

perform surgeon.

Sty-A bacteria infection around the eyelash which causes swelling and pain. Treatment is warm compression and the sty will drain

Pinkeye-Caused by bacteria, like makeup, pollen; inflammation of the inner eye in which the white part of your eye (sclera) turns red and itchy Treatment see a doctor highly contagious

Glaucoma- Build up of fluid pressure in the eye damaging the optic nerver ( 2nd leading cause of blindness in US usually over 35 years of age)

Nearsighted- Objects that are far away appeared blurred, (usually develops about the age of 12 worsen by 20)

Farsighted- Nearby objects appear blurred