Download The Respiratory System

The Respiratory System
• Complete Anticipatory Guide BEFORE
reading.
• Read pgs. 77 – 81 & 92 – 97.
• Write a 2-3 sentence summary for each
subheading.
While you
• Sketch a diagram of your Respiratory
are working
System in your journal.
I will call
• Complete Anticipatory Guide AFTER
groups back
reading.
to make
• Use your model to answer all the
their
questions from page 88 in your journal.
model.
The Respiratory System
How does the model show what
happens when we breathe?
The suffix ‘-itis’ indicates
an inflammation or
swelling of an internal
body part.
The larynx is also known
as the voice box. What
happens when you have
laryngitis?
What do you suppose
bronchitis is? Why might
it be a problem?
FACT: Smoking is the most
preventable cause of death
in the United States.
Smoking can damage some of the most important
organs in your body, including the lungs, heart and
brain. The poisonous chemicals in cigarettes can
cause emphysema (a lung disease) and bronchitis
(inflammation of air passages to the lungs), heart
disease, heart attacks, stroke (an interruption of
the blood flow to the brain) and cancer.
Here are some other effects
that smoking can have :
Smoking negatively
affects the respiratory,
circulatory, nervous,
digestive, and
skeletomuscular
systems. That’s all of
your major organ
systems!
Hearing and vision loss
Bad breath
Wrinkles
Arthritis
Asthma
Heartburn
Diarrhea
Decreased circulation in the fingers and toes
Yellowing of fingernails and toenails
Decrease in athletic performance. Think about it: you can't run as fast
or jump as high if you can't breathe properly!
Cancer of the mouth, gum disease, tooth decay, and yellow staining of
the teeth
Stomach ulcers, pancreatic cancer, bladder cancer, kidney and liver
damage
Secondhand Smoke
• …causes up to 300,000 lung infections (like pneumonia
and bronchitis) in babies and young children each year.
• …causes babies to be at risk for SIDS (Sudden Infant
Death Syndrome).
• In a crowded restaurant, smoking can produce six times
the pollution of a busy highway.
• Pets suffer too! It can cause leukemia (a type of cancer)
in cats and enlarged hearts in dogs.
Why smoke?
Tobacco contains nicotine, a chemical that
causes a tingly or pleasant feeling — but that
feeling only lasts for a little while. Nicotine is also
addictive. That means that if you start to use
nicotine, your body and mind will become so used
to it that you'll need to have it just to feel OK.
What's In A Cigarette?
It's just one cigarette...but wow! That little thing has over 4,000 chemicals in it! You
already know that cigarettes contain Nicotine, but did you know that Nicotine is also
used in bug spray?
Below are a few of the other chemicals found in cigarettes:
• Tar. This ingredient, which gives cigarettes flavor, is the same thick black
substance used to pave roads and driveways.
• Formaldehyde. This is the same stuff used to preserve dead animals,
like the frogs dissected in some biology classes.
• Cyanide, which is also a main ingredient in rat poison.
• Acetone, which is a common ingredient in paint and nail polish remover.
• Ammonia. Besides the fact that it's in many household cleaners, it's also in
cigarettes.
• Carbon monoxide, a common pollutant and the same stuff that
escapes from the exhaust in cars.
• Hydrazine, a chemical used in jets and rocket fuel.
Once a lung is
damaged, it cannot
be repaired. Doctors
can perform a lung
transplant, but the
immune system will
try to kill the new
organ because it is
not made of the
host body’s cells.
To prevent this, doctor’s often give
organ recipients medicine to limit
the immune system. Why is this a
problem? What else could we do?
In your journal….
If we can create hearts and lungs in a lab, it won’t
be too long until we can create all the body parts
needed for life. If we can continuously replace body
parts when they wear out, we could live a
significantly longer life, but should we?
Record your opinion and
support your claim. Think
about personal effects
(ex. not losing loved
ones) as well as global
effects (ex. dramatic
increase in population).
Add and label the heart, lungs, trachea,
bronchus, and diaphragm to your body
model. Be sure to draw your organs to
the right proportions! Notice how the
heart is underneath the left lung.
Your respiratory system
should take up about
1/3 of your chest cavity.
You will need the other
2/3 for your digestive
system!