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What is it?Main Parts of it
Come up with 4 things that you know about the Respiratory System (or think you know).
Come up with 4 questions that you have about the Respiratory System.
Respiration(Breathing)
* We need oxygen
to survive!!QuickTime™ and a
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In Your PODS1. What happens in our bodies
when we breathe?
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Take out a piece of notebook paper to draw on.
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In Your POD’s
2. Why do you think our bodies cough?
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2. Our body’s natural way of clearing dust and anything else in our windpipe or lungs. We have an automatic “cough reflex” in
our body that detects when it’s necessary to cough.
Our “cilia”, tiny little hairs in our airways, collect dirt. So when they fill up…. COUGH!!
When your body senses that there is something in your airway that shouldn't be there, you: automatically take a deep breath, close your windpipe at the epiglottis momentarily, push air against the closed epiglottis with your lung
muscles to build up extra pressure, and then open your epiglottis. When the epiglottis opens, the high-pressure air
comes out explosively, and the explosion helps force the matter out of your airways. You can also cough whenever you want to, whether to clear your throat or for other reasons.
POD Question3. Why do we get runny noses?
Why do we sneeze?
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Why Runny Noses? Why Sneezing?
3. It’s another way to protect our airways and to clean out any irritants. We produce more mucous to “flush” out the irritants.Allergies irritate our mucous membranes and make
us produce an excessive amount.Sneezing: Also a reflex. Similar to the coughing reflex
where cilia are filled with dirt or particles in the nose, then ACHOO!!!
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4. Why is the Respiratory System a common site of infection?
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Why Susceptible To Infections?4. Because germs can easily enter
through your nose and mouth.
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POD Question
5. What requires more oxygen?Sleeping Or Running A Mile?
WHY?
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More Oxygen? Sleeping or Mile Run?
5. Running a mile, because the demand for oxygen is greater.
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POD Question6. What else happens in our bodies when the demand for oxygen is increased? (Hint: Think about other systems we’ve learned about…..)
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Demand for Oxygen Increased….?
6. Our heart needs to pump more often in order to pump out more blood to the muscles so that they can get proper oxygen to meet the increased demand.
* Also, our brain prioritizes where blood
should go. QuickTime™ and a
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POD Question
7. Come up with a list of 4-5 activities where respiration (breathing) is essential (very important) to the activity.
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Breathing lung
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Activities of Respiration
Activities of Respiration
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Activities of Respiration
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Take out your Respiratory Diagram
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• Air enters through the NOSE and MOUTH• Lined with mucous membranes• Fine hairs called cilia trap dirt
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• Throat• Has two passageways • One for air • One for food (down to digestive
system)• “It went down the wrong tube!”……
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EpiglottisA flap of tissue that closes over the
trachea when you swallow.
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LarynxContains the vocal cordsIt grows larger during puberty
Adam’s Apple (***Hum to find where your larynx is).
Epiglottis to the…………
TracheaDirects air to the lungs.
Long tube
BronchiPassages through which air enters the lungs
You have a left and right “bronchus” because they are like a “V”
They go directly into the lungs
LungsOxygen is transferred into the blood
and carbon dioxide is removed from the blood. (Alveoli and capillaries)
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Questions???
Partner up with one person within your PODAct as if they have never heard anything
about how blood gets oxygen and how the body gets out bad carbon dioxide.
Draw for them on a napkin (or on notebook paper) the entire process of Oxygen/CO2 exchange. Label parts. Try not to use your notes!!
Then, you pretend that they didn’t teach you anything and draw and teach the same thing to them.