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Smoking
What’s in a cigarette
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Nicotine: The addictive drug in cigarettes
Stimulant: Is a drug that increases the
action of the central nervous system
Tar: Is a thick, sticky, dark fluid produced
when tobacco burns. This tar consists of
many cancer causing substances known as
carcinogens
What’s in a cigarette
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Carbon Monoxide: Is a colorless, odorless,
poisonous gas in cigarette smoke that
passes through the lungs and into the
blood.
The gas unites with the hemoglobin and
prevents it from caring oxygen.
Statistics from the American Lung
Association
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Cigarette smoke contains over 4,800 chemicals,
69 of which are known to cause cancer.
About 8.6 million people in the U.S. have at
least one serious illness caused by smoking.
Secondhand smoke involuntarily inhaled by
nonsmokers is responsible for approximately
3,000 lung cancer deaths annually.
In 2004, 22% of high school students were
current smokers.
Smoking

Effects on the lungs
How the circulatory system works
The Healthy Lung
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Anatomy & Physiology
of the lungs.
Chronic Bronchitis
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Chronic bronchitis: is
the inflammation and
eventual scarring of the
lining of the bronchial
tubes. As the cilia
become useless, tar
from cigarette smoke
builds up, which results
in coughing and
excessive mucus
secretion.
Pulmonary Emphysema

In emphysema, the
fine dividing walls
between the tiny air
sacs break. The sacs
balloon out to become
large pockets of air
with hard inflexible
walls.
Lung Cancer

Cancer is an area of
uncontrolled cell
growth that invades
the surrounding tissue
and destroys it. This
is due to the build up
of tar in the lungs.
Chronic Bronchitis &
Pulmonary Emphysema
Smoking and the Circulatory System
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Constricts blood vessels
Plaque builds up in arteries
Makes heart work harder
Increase chance of heart disease
Increase chance of stroke
Increase blood pressure
Other effects of smoking
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Shuts down circulation in small vessels
causing cold hands and feet.
Wrinkling of skin, especially the face
Interferers with immune response making
colds more likely
Yellow teeth and tongue
Odor
Other effects of smoking
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Makes it likely that men will produce
abnormal sperm
Causes women to become infertile
Smoking & Pregnancy
Effects of smoke on young children
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In the U.S. 21 million children live in homes
where residence or visitors smoke in the home
on a regular basis.
Children of smokers tend to have a higher
incidence of sore throats, ear infections, and
upper respiratory problems.
Children who live with smokers have double the
risk of developing lung cancer.
Children of smokers are nearly 3 times as likely
to smoke.
Effects of smoke on unborn children
and infants
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Can impair fetal growth.
Miscarriages
Prenatal death
Premature delivery
Low birth weight
Deformities
Growth & Developmental problems
throughout early childhood.
Stillbirths