1. Welcome to... Sit back and enjoy... Learning About the
The Show of the Century
Sit back and enjoy...
Learning About the
Respiratory System
of the Human Body
McKinley 10th HPE

2. Nasal Passage Pharynx Trachea Bronchi Alveoli Bronchiole
Title Page
Human Respiratory System Diagram
Nasal Passage
Pharynx
Trachea
Bronchiole
Bronchi
Alveoli

3. Oxygen Cell Hi I am O2 ,you can call
me oxygen, and I will be your guide today.
I advise you keep all feet
and hands inside the ride at all times.
Oxygen Cell

4. Respiratory Intro
You may be asking, what is the Respiratory system? Well, the Respiratory system is the system that helps you breath in and out, so oxygen (02) can be pumped through your body and carbon dioxide (CO2) can be removed from the blood stream. You must remember that the Respiratory system is made up of many different organs.

5. Where are we? Nasal Passage Here We Go!!! Tongue Pharynx Bronchi Tubes
Alveoli (air-sacs)
Thin-walled blood vessels called capillaries
Very thin cells line the alveoli so that O2 and CO2 can pass in and out of the blood.
Bronchioles pass air to and from your alveoli.
The Trachea is held open by partial rings of cartilage.
Tongue
Pharynx
Where are we?
Here We Go!!! JH

6. Picture Intro Here is a overview picture of the Respiratory System.
Just go to the next slide to see
it.

7. Respiratory Overview Picture
Nasal Cavity
Nose
Mouth
Bronchus
Bronchiole
Alveolus
Diaphragm
Throat
(pharynx)
Windpipe (Trachea)
Left lungs
Ribs

8. Now we will begin our tour.
Welcome to…
Welcome
The Respiratory System

9. The Nose and Mouth This is where it all begins.
This is where the oxygen first
enters your body and also where
Carbon Dioxide leaves.

10. The Nose and Mouth When the air comes into your nose it gets
filtered by tiny hairs and it is moistened by the
mucus that is in your nose.
Your sinuses also help out with your
Respiratory System. They help to moisten
and heat the air that you breath.
Air can also get into your body through your
mouth/oral cavity but air is not filtered as
much when it enters in through your mouth.

11. Here is a picture of your nasal and
Nose and Mouth Picture
Nasal Cavity
Nostril
Oral Cavity
Pharynx
Here is a picture of your nasal and
oral cavity.

12. Where are We? Nasal Passage We are here. Tongue Pharynx Bronchi Tubes
Alveoli (air-sacs)
Thin-walled blood vessels called capillaries
Very thin cells line the alveoli so that O2 and CO2 can pass in and out of the blood.
Bronchioles pass air to and from your alveoli.
The Trachea is held open by partial rings of cartilage.
Tongue
Pharynx
We are here.

13. The Pharynx and Trachea
Next we will head down to your pharynx
(throat) and your trachea (windpipe).
This is where the air passes from your
nose to your bronchi tubes and lungs.

14. The Pharynx and Trachea
(Throat)
Mouth
Trachea
Your pharynx (throat) gathers air after it passes
through your nose and then the air is passed down to
your trachea (windpipe).
Your trachea is held open by “incomplete rings
of cartilage.” Without these rings your trachea
might close off and air would not be able to get
to and from your lungs.

15. Where are We? Nasal Passage Tongue Pharynx We are here. Bronchi Tubes
Alveoli (air-sacs)
Thin-walled blood vessels called capillaries
Very thin cells line the alveoli so that O2 and CO2 can pass in and out of the blood.
Bronchioles pass air to and from your alveoli.
The Trachea is held open by partial rings of cartilage.
Tongue
Pharynx
Where are We?
We are here.

16. The Bronchi Tubes and Bronchiole Intro
Your trachea (windpipe) splits up into
two bronchi tubes. These two tubes keep
splitting up and form your bronchiole.

17. The Bronchi Tubes and Bronchiole
These bronchi tubes split up, like
tree branches, and get smaller and smaller
inside your lungs.
The air flows past your bronchi tubes
and into your bronchiole. These tubes
keep getting smaller and smaller until they
finally end with small air sacs (called alveoli).
But we will go there later…

18. Alveoli and Bronchi Picture
Trachea
Bronchi Tubes
Bronchiole
Alveoli

19. Where are We? Nasal Passage Tongue Pharynx Bronchi Tubes
Alveoli (air-sacs)
Thin-walled blood vessels called capillaries
Very thin cells line the alveoli so that O2 and CO2 can pass in and out of the blood.
Bronchioles pass air to and from your alveoli.
The Trachea is held open by partial rings of cartilage.
Tongue
Pharynx
Where are We?
We are here.

20. The Alveoli and Capillary Network
Now we will head over to the
alveoli and what happens when the
air finally makes it down there.

21. The Alveoli and Capillary Network
Your alveoli are tiny air sacs
that fill up with air/oxygen when you
breath in.
Your alveoli are surrounded by
many tiny blood vessels called
capillaries.
The walls of your alveoli (and capillaries) are
so thin that the oxygen or carbon dioxide can
pass through them, traveling right into, or
out of your blood stream.

22. Alveoli Picture Here is a close Capillary up picture of your Alveoli
and a Capillary
surrounding it.
Capillary
Red Blood Cell
Oxygen is picked up
Carbon Dioxide is dropped off
Wall of the air sac

23. Where are We? Nasal Passage Tongue Pharynx Bronchi Tubes
Alveoli (air-sacs)
Thin-walled blood vessels called capillaries
Very thin cells line the alveoli so that O2 and CO2 can pass in and out of the blood.
Bronchioles pass air to and from your alveoli.
The Trachea is held open by partial rings of cartilage.
Tongue
Pharynx
Where are We?
We are here.

24. Alveolus Bronchiole Respiratory Bronchiole Alveolar Duct Alveolar Sac
Capillaries
Alveolus

25. Looking at the Alveoli
Lets take a closer
look shall we.

26. Red blood cell carrying Carbon dioxide
Chemical change is taking place in cell
Red blood cell carrying oxygen
Alveolus
Contiguous Basal Laminae (Membrane)
Capillary
Chemicals

27. Contiguous Basal Laminae (Membrane*)
Oxygen
Diffusion
Carbon Dioxide
Oxygen diffuses through the membrane into the blood stream. Carbon Dioxide diffuses through the membrane and enters the alveolus.
Alveolus
Contiguous Basal Laminae (Membrane*)
Capillary
* A specialized thin layer of skin that oxygen and carbon dioxide can pass through.

28. Cool pictures

29. Intro to Diaphragm
Now we will look at the Diaphragm. You might be wondering, what does the Diaphragm do? The Diaphragm is an important factor in breathing.

30. Diagram of Diaphragm

31. Respiratory Overview Review
CO2
Air Passing over the mucus membrane of the nasal cavity is moistened, warmed, and filtered
Inside the lungs the Bronchi branch into small tubes called bronchioles
The Pharynx, or throat, is located where passages from the nose and mouth came together.
Respiratory Overview Review
At the end of the bronchioles are bunches of alveoli, air sacs, arranged like grapes on a stem
Air enters the trachea, or wind pipe which leads to and from the lungs
If one lobe is injured or diseased, the other lobes may be able to function normally
The trachea divides into two tubes called bronchi

32. Fun Facts * The right lung is slightly larger than the left.
* At rest, the body takes in and breathes out about 10 liters of air each minute.
* The right lung is slightly larger than the left.
* The highest recorded "sneeze speed" is 165 km per hour.
* The surface area of the lungs is roughly the same size as a tennis court.
* The capillaries in the lungs would extend 1,600 kilometers if placed end to end.
* We lose half a liter of water a day through breathing. This is the water vapor we see when we breathe onto glass.
* A person at rest usually breathes between 12 and 15 times a minute.
* The breathing rate is faster in children and women than in men.

33. Key Words
Respiratory System- The group of organs in your body that are responsible for taking in Oxygen and breathing out the Carbon Dioxide which is the waste product of cellular respiration.
Oxygen-The gas that your body needs to work and function.
Carbon Dioxide- The waste product (gas) that is produced through respiration of people and animals.
Nose/Nasal Cavity- Where Oxygen first enters your body. Tiny hairs help filter the air and air is moistened and heated by your nose. Your Nose leads into your Nasal Cavity.
Mouth/Oral Cavity- Oxygen/air can also enter through your Mouth but it is not filtered. Your Mouth opens up into your Oral Cavity.
Sinus- A cavity in the bones of your skull that helps moisten and heat the air that you breath.
Pharynx/Throat- Gathers air from your Nasal and Oral Cavities and passes it to your Trachea.
Trachea/Windpipe- A tube like pathway that connects your throat to your Bronchi Tubes and lungs. Air passes through it when it travels from the Pharynx to the Bronchi Tubes.

34. Key Words Cont.
Bronchi Tubes- Each tube (one per lung) splits up into many smaller tubes called Bronchiole, like branches on a tree.
Bronchiole- Keep splitting up until they reach your Alveoli.
Respiratory Bronchiole- The air-tubes that are actually connected to the Alveoli.
Alveolar Duct- The final tube, which is part of the Alveoli, that leads to the air-sacs.
Alveolar Sac- Where the chemical change takes place and where blood cells pick up oxygen and drop off carbon dioxide.
Alveoli- Tiny air-sacs at the end of your Alveolar Duct. They fill up with Oxygen and are surrounded by Capillaries.
Capillaries- Tiny blood streams (around one cell wide) that surround your Alveoli. They take Oxygen out of our Lungs and replace it with Carbon Dioxide, which you later breath out.
Diaphragm- The muscle membrane that helps you breath in and out by changing the pressure in your chest cavity.

35. For more information please visit:
Works Cited
For more information please visit:
-Why do you need to breathe? And basic info on parts of the Respiratory system
-Basic Anatomy of the Respiratory System