What is it?Main Parts of it

Respiratory System

●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.

In Your PODS

MAIN PURPOSE OF RESPIRATORY SYSTEM

Respiration(Breathing)

* We need oxygen

to survive!!

MAIN PURPOSE OF RESPIRATORY SYSTEM

In Your PODS1. What happens in our bodies

when we breathe?

What Happens When We Breathe?

●Take out a piece of notebook paper to draw on.

●Draw a heart, twolungs, and a stickman.

● Taking Pulmonary Circulation a step further.

Respiration (Oxygen/CO2 Exchange)

Respiration (Oxygen/CO2 Exchange)

In Your POD’s

2. Why do you think our bodies cough?

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!!

Why Do We 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.

How Does Coughing Work?

POD Question3. Why do we get runny

noses? Why do we sneeze?

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!!!

4. Why is the Respiratory System a common site of infection?

POD Question

Why Susceptible To Infections?4. Because germs can easily enter

through your nose and mouth.

POD Question5. What requires more oxygen?Sleeping Or Running A Mile?

WHY?

More Oxygen? Sleeping or Mile Run?

5. Running a mile, because the demand for oxygen is greater.

POD Question6. What else happens in our bodies when the demand for oxygen is increased? (Hint: Think about other systems we’ve learned about…..)

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.

POD Question

7. Come up with a list of 4-5 activities where respiration (breathing) is essential (very important) to the activity.

Activities of Respiration

Activities of Respiration

Activities of Respiration

Activities of Respiration

Take out your Respiratory Diagram

Take out your Respiratory Diagram

• Air enters through the NOSE and MOUTH• Lined with mucous membranes• Fine hairs called cilia trap dirt

The Flow of Air

• Throat• Has two passageways • One for air • One for food (down to digestive

system)• “It went down the wrong tube!”……

From the nose and mouth to the…..

●Epiglottis●A flap of tissue that closes over the

trachea when you swallow.

Throat to the….

●Larynx●Contains the vocal cords●It grows larger during puberty

●Adam’s Apple ●(***Hum to find where your larynx is).

Epiglottis to the…………

●Trachea●Directs air to the lungs.

●Long tube

Larynx to the…..

●Bronchi● Passages 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

Trachea to the…..

●Lungs●Oxygen is transferred into the blood

and carbon dioxide is removed from the blood. ●(Alveoli and capillaries)

Bronchi to the…..

Healthy Lungs

●On left,Empysema

●On right,Lung Cancer

Lungs of a Smoker

What's in a Cigarette?There are approximately 600 ingredients in cigarettes. When burned, they create more than 4,000 chemicals. At least 50 of these chemicals are known to cause cancer, and many are poisonous. ●Many of these chemicals are also found in consumer products, but these products have warning labels. While the public is warned about the danger of the poisons in these products, there is no such warning for the toxins in tobacco smoke.●Here are a few of the chemicals in tobacco smoke, and other places they are found:●Acetone – found in nail polish remover●Acetic Acid –  an ingredient in hair dye●Ammonia – a common household cleaner●Arsenic – used in rat poison●Benzene – found in rubber cement●Butane – used in lighter fluid●Cadmium – active component in battery acid●Carbon Monoxide – released in car exhaust fumes●Formaldehyde – embalming fluid●Hexamine – found in barbecue lighter fluid●Lead – used in batteries●Napthalene – an ingredient in moth balls●Methanol – a main component in rocket fuel●Nicotine – used as insecticide●Tar – material for paving roads●Toluene - used to manufacture paint

Smoker vs. Non-Smoker Lungs

Questions???

●Partner up with one person within your POD●Act 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.

In Your PODS

What does smoking ONE cigarette do to your lungs?

LET’S FIND OUT!!

Respiratory Lab