Breathing Mechanism

1. THE HUMAN ORGAN
SYSTEM

2. BREATHING
EXERCISE
https://www.youtube.com/watch?v=b0FZlT3Uk30

3. HOW WERE YOU
ABLE TO DO THE
BREATHING
EXERCISE?

4. THE HUMAN ORGAN
SYSTEM
RESPIRATORY SYSTEM

5. IF YOU ARE GOING TO
DEDICATE A SONG TO
YOUR RESPIRATORY
SYSTEM, WHAT
WOULD IT BE AND
WHY?

6. HOW DO I
BREATHE
WITHOUT YOU?
Play the Song How Do I Live by LeAnn
Rimes

7. WHAT CAUSES
THE AIR TO GO IN
AND OUT OF
YOUR BODY?

8. HOW DOES IT
HAPPEN?

9. IDENTIFY THE PARTS
Alveoli
Nose
Bronchioles
Nasal passage
Trachea
Bronchi
Nose
Alveoli
Bronchioles
Nasal passage
Trachea
Bronchi

10. IS THERE ANY
OTHER PARTS
NOT
MENTIONED?

11. AMONG THE PARTS
YOU HAVE
MENTIONED, WHICH
PART DOES AIR DO
NOT PASS
THROUGH?

12. WHAT DO YOU
THINK IS ITS
PURPOSE?

13. LET’S INVESTIGATE!
The
BREATHING
MECHANISM

14. ACTIVITY: THE
BOTTLED BALLOON
Objectives:
•Explain how the lungs work.
•Describe how the movement of
the diaphragm helps the air go
in and out of the lungs.

15. ACTIVITY: THE
BOTTLED BALLOON
Materials:
•1 big plastic bottle cut in half
•3 balloons (1 big, 2 small)
•1 -2 sturdy straw
•1 pair of scissors
•5 rubber bands/tape/clay

16. ACTIVITY: THE
BOTTLED BALLOON
Procedure:
• Using a pair of scissors, cut the bottom out of
the 2-liter plastic bottle.
• Stick the two straws through the two holes of
the bottle
• Place one balloon on the end of each straw,
and secure them with rubber bands/tape, as
shown in the figure in your activity sheet.

17. ACTIVITY: THE
BOTTLED BALLOON
Procedure:
• Stick the balloon ends of the straws through
the bottle opening and seal the mouth of the
bottle with use of a tape or clay.
• Stretch out the larger balloon and place it
over the open bottom of the bottle. Secure it
as tightly as possible. Refer to the diagram in
your activity sheet.

18. ACTIVITY: THE
BOTTLED BALLOON
Procedure:
• Pull the larger balloon down; that is, away
from the bottle, in order to blow up the two
small balloons.
• Push the larger balloon towards the bottle in
order to let the air out of the two small
balloons.
• Write down 2-3 observations.

19. ACTIVITY: THE
BOTTLED BALLOON
Procedure:
• Label the diagram of the lung model by
writing the represented organ in the model.
• Answer the Guide Questions.

20. GUIDE QUESTIONS
Q1. What does each part of the constructed
lung model represent?
Q2. What happens as you pull down the
balloon at the bottom of the model?
Q3. What happens as you push up the
balloon?
Q4. How does the movement of the diaphragm
cause the air to go in and out of the lungs?
Q5. What might happen if you prick the
balloon? clog the ballon inside?

21. COMPARING THE
STRUCTURE
TRACHEA
BRONCHI
BRONCHIOLES
ALVEOLI

22. COMPARING THE
STRUCTURE
NASAL PASSAGE
BRONCHI
LUNGS
DIAPHRAGM

23. SUM IT UP!
ORGAN
Inhalation
(air enters)
Exhalation
(air exits)
LUNGS
DIAPHRAGM

24. SUM IT UP!
ORGAN
Inhalation
(air enters)
Exhalation
(air exits)
LUNGS EXPANDS
DIAPHRAGM

25. SUM IT UP!
ORGAN
Inhalation
(air enters)
Exhalation
(air exits)
LUNGS EXPANDS
DIAPHRAGM
CONTRACTS

26. SUM IT UP!
ORGAN
Inhalation
(air enters)
Exhalation
(air exits)
LUNGS EXPANDS CONTRACTS
DIAPHRAGM
CONTRACTS

27. SUM IT UP!
ORGAN
Inhalation
(air enters)
Exhalation
(air exits)
LUNGS EXPANDS CONTRACTS
DIAPHRAGM
CONTRACTS RELAXES

28. HOW ABOUT THIS?
Obstruct some parts of the
lung model. Reflect on how it
affects the breathing
mechanism.
DO THE NEXT ACTIVITY!

29. ACTIVITY: POSTER
MAKING
Create a poster on the
importance of a functional
respiratory system.

31. RUBRIC

32. You will be required to upload your poster/meme/gif in your
social media accounts and reflect on the reactions of your
peers in the digital world. Write a reflection about it in your
journal/ntbk. You may consider answering the following
questions.
1. How were you able to show the importance of a
working/functional respiratory?
2. How were you able to promote a healthy lifestyle among
your peers?
3. Do you think your work will be an effective tool in making
your peers be conscious about their lifestyle? Why?
4. How will you elevate the call against unhealthy lifestyle
among the youth?
EXTENDED ACTIVITY

33. EXTENDED ACTIVITY
On your peers’ reaction to your post.
1.How did your peers react to your post?
2.How did you react or feel about your peers’ thoughts
regarding your post?
3.What are some of the positive feedbacks you get
from your peers?
4.What are the negative feedbacks you get from your
peers?
5.Do you think you made an impact to other people’s
lives with your post? Describe how were you able to
affect them through your post

34. QUIZ
TIME

35. QUIZ
1. Inhaling
A. Occurs when the diaphragm contracts
B. Occurs when the diaphragm relaxes
C.Is the exchange of gas between blood cells
and the lungs
D.Is when oxygen in the air is drawn into the
body and carbon dioxide is released from
the body

36. QUIZ
2. Ventilation or breathing involves which
organs?
A. The larynx, pharynx, and trachea
B. The lungs, larynx, pharynx, and trachea
C.The heart and lungs, larynx, pharynx, and
trachea
D.The heart, blood and lungs, larynx,
pharynx, and trachea

37. QUIZ
3. Breathing is controlled by the
A.Diaphragm
B.Respiratory centers in the brain
C.Level of carbon dioxide in the
blood
D.All three of the above

38. QUIZ
4. How does the movement of the
diaphragm cause air to go in and out of the
lungs?
A. Movement of the diaphragm affects the air
pressure inside the chest
B. By either decreasing or increasing the
space of the chest cavity allowing air to go
in and out of the lungs
C.Both a and b
D.Neither a nor b

39. QUIZ
5. When you hold your breath, which
of the following first leads to the urge
to breathe?
A.falling CO2
B.falling O2
C.rising CO2
D.rising pH of the blood

40. QUIZ
Write I if the statement refers to inhalation
or E if it is exhalation.
• _____6. The ribs expand.
• _____7. The diaphragm contracts or
flattens
• _____8. Air rich in O2 enters the lungs
from the atmosphere.
•_____9. The diaphragm relaxes
• _____10. Air rich in CO2 exits the lungs

41. THE ACTUAL LUNGS
https://www.youtube.com/watch?v=kE2vrzwC3Bo

42. THE
LUNGS

43. What Oxygen
Is To The
Lungs, Such
Is Hope
To The Meaning
Of Life