1. The Respiratory System
Complete Anticipatory Guide BEFORE reading.
Read pgs. 77 – 81 & 92 – 97.
Write a 2-3 sentence summary for each subheading.
Sketch a diagram of your Respiratory System in your journal.
Complete Anticipatory Guide AFTER reading.
Use your model to answer all the questions from page 88 in your journal.
While you are working I will call groups back to make their model.

2. The Respiratory System

4. How does the model show what happens when we breathe?

5. 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?

6. 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.

7. 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

8. 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.

9. 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.

10. Below are a few of the other chemicals found in cigarettes:
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.

11. Once a lung is damaged, it cannot be repaired
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?

12. 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).

13. 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!