Chapter 8Tobacco

Lesson 1How Tobacco Affectsthe Body

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Teacher’s notes are available in the notes section of this presentation.

nicotineAn addictive, or habit-forming, drug found intobacco

A thick, dark liquid that forms when tobacco burns

A colorless, odorless, poisonous gas produced when tobacco burns

tar

carbonmonoxide

alveoli The tiny air sacs in the lungs

A disease that results in the destruction of thealveoli in the lungs

emphysema

In this lesson, you will be able to

identify the harmful ingredients in tobacco smoke.

describe how tobacco affects the body.

apply the skill of advocacy to encourage someone to betobacco free.

Predicting

Look over the headings in this

lesson. Write a question that

you think the lesson will

answer. After the lesson,

check to see if your question

was answered.

Headings in this Lesson

• Facts About Tobacco

• What Is in Tobacco?

• Forms of Tobacco

• Tobacco Affects Body Systems

Facts About Tobacco

One puff oftobacco smoke =

In the United States, more than 400,000 people die every year from smoking-related illnesses.

4,000 HarmfulChemicals!

What Is In Tobacco?

Tobacco products contain poisonous substances such as nicotine, tar, and carbon monoxide.

nicotine An addictive, or habit-forming, drug found in tobacco

tar A thick, dark liquid that forms when tobacco burns

carbon monoxide A colorless, odorless, poisonous gas produced when tobacco burns

What Is In Tobacco?

Cyanide FormaldehydeMethyl Ethyl

KetonePolonium 210

A deadly poisonfound in pestcontrol products.

A burning, stinging gas used as a preservativein laboratories.Causes nasalcancer.

Used in solvents.Harms the centralnervous system.

An element knownto cause cancer.

Forms of Tobacco

Cigarettes Cigars and Pipes Smokeless Tobacco

• Filters do not keep out harmful chemicals.

• Flavored cigarettes have more chemicals than non-flavored cigarettes.

• Cigar smoke is more harmful than cigarette smoke.

• Smokers of cigars and pipes are more likely to get mouth, tongue, or lip cancer than people who don’t smoke.

• The two forms are chewing tobacco and snuff.

• Nicotine is absorbed into the body through the digestive tract.

• Smokeless tobacco is just as harmful and addictive as cigarettes.

Tobacco Affects Body Systems

Some of the effects of using tobacco include:

Bad breath

Bad odor in hair and clothes

Increased heart rate

Increased blood pressure

Getting sick more often and longer

Decreased ability to run as far or as fast

Respiratory System

Breathing in tobacco smoke damages the alveoli, which can lead to emphysema.

alveoli The tiny air sacs in the lungs

emphysema A disease that results in the destruction of the alveoli in the lungs

Digestive System

Smoking can lead to mouth and stomach ulcers, which are painful, open sores.

Smoking increases the chances that you will get cavities and gum disease.

Nervous System

The brain adapts to nicotine by increasing the number of nicotine receptors.

This causes tobacco users to need more tobacco.

Circulatory System

As a person smokes, blood vessels constrict.

Over time, the blood vessels can harden, which can lead to heart attack, stroke, or coronary heart disease.

Excretory System

Lungs BloodSMOKECHEMICALS

KidneysAnd Urine

Bladder damage andincreased risk ofcolorectal cancer

What I Learned

Vocabulary Define tar.

Lesson 1 Review

What I Learned

Explain Describe the ways in which smoking harmsthe body.

Lesson 1 Review

What I Learned

Identify Name five substances in tobacco smoke thatare harmful to the body.

Lesson 1 Review

What I Learned

Lesson 1 Review

List Name three forms of tobacco.

Thinking Critically

Hypothesize How might you influence a peer to makethe healthful choice to quit chewing tobacco?

Lesson 1 Review

Thinking Critically

Analyze Why do you think it is important for a teen to never try tobacco?

Lesson 1 Review

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Chapter 8Tobacco

Lesson 1How Tobacco Affectsthe Body

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