Transcript Tobacco ch 8 7th

There is more than 4000 chemicals in a single puff of
tobacco
Tobacco contains 3 very harmful substances
1. Nicotine – an addictive drug found in tobacco makes you crave even more
2. Tar – a thick dark liquid that forms when tobacco
burns it coats the lining of the lungs and causes diseases
3. Carbon Monoxide – colorless, odorless, poisonous
gas produced when tobacco burns
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Tobacco can be smoked, chewed, or inhaled - most
common form is cigarettes
Cigarettes are made from shredded tobacco leaves
Some have filters reduce nicotine and tar
Cigars and Pipes are shredded tobacco is also used
Cigar smoke contains 25X more CO2 and 400X
more nicotine
Smokeless Tobacco and chew are placed in the
mouth rather than smoked.
Respiratory System - Tobacco smoke damages the
aveoli in the lungs. Aveoli- tiny air sacs in the lungs
This damage leads to lung cancer & Emphysema .
(disease that results in the destruction of the aveoli in
the lungs)
Digestive System - increase risk of cavities and gum
disease
dulls taste buds
stomach ulcers
cancer – mouth, throat, stomach,
& brain
Nervous system – reduces flow of O2 to
Brain- lack of O2 can cause strokes
Excretory system – develop bladder cancer
from chemicals absorbing into
bloodstream and damaging kidneys and
bladder
Circulatory system – constricts blood
vessels and causes heart disease
The set of organs that supply your body with oxygen
and rid your body of carbon dioxide
 Parts of the system
Trachea – tube in throat that takes air to and from the
lungs. (windpipe)
Epiglottis- flap of tissue in the back of your mouth that
keeps food out of your trachea. (It covers the trachea
when you eat and uncovers when you breath)
Bronchi – two tubes that branch from the trachea – one
tube to each lung
Diaphragm – large dome-shaped muscle below the
lungs that expands and relaxes to produce breathing
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The breathing process is a three step process
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1. Inhaling
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2. Inside the lungs
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3. Exhaling
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When you inhale you take air into your lungs
– then the air enters the blood stream and
replaces the carbon dioxide. When you
exhale you breathe out the carbon dioxide.
Take care of your respiratory system!
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Exercise regularly(cardiovascular exercise)
Don’t smoke
Avoid situations where you are exposed to
smoke
Take care of yourself when you are sick
Addiction – a psychological or physical need for
a drug or other substance
Nicotine is as addictive as alcohol, cocaine, or
heroin

Withdrawal – the unpleasant symptoms that
someone experiences when he or she stops
using an addictive substance
Psychological dependence – an addiction in
which a person believes that he or she needs a
drug in order to feel good or function normally
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Physical dependence – an addiction
in which the body develops a
chemical need for a drug

Tolerance – the body’s need for larger
and larger doses of a drug to produce
the same effect
PEER PRESSURE
WANTING TO LOOK COOL
WANTING TO BE JUST LIKE CELEBRITIES
TOO HOOKED TO QUIT
WANTING TO SEEM MORE GROWN UP
PARENTS OR OTHER FAMILY MEMBERS USE
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Passive smokers – non smokers who
breath second hand smoke
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It can be just as dangerous as smoking.
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Breathing in 2nd hand smoke can harm your
health.
Secondhand smoke – air that is
contaminated by tobacco smoke
Mainstream smoke – the smoke that a
smoker inhales then exhales.
Sidestream smoke – smoke that comes from
the burning end of a cigarette, pipe, or cigar.
It contains twice as much tar and nicotine as
mainstream smoke
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The decision to avoid tobacco is the
healthiest choice you can make.
Healthy skin
Fresh breath
Honesty towards parents and friends
Better smelling clothing and hair
Saving money
Better health
More energy and endurance
Fewer allergies
 The nicotine in tobacco makes it
hard to quit smoking.
You can quit if you want to.
While trying to stop you may
experience withdrawal symptoms
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Make a list of reasons to quit.
Set small goals.
Avoid being with people who are using
tobacco.
Change any habits that are linked to using
tobacco.
Learn stress-relieving techniques.
Engage in physical activity.
COLD TURKEY IS A POPULAR PRACTICE.