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Constructs a model to demonstrate
the mechanism of breathing
Science V
Review
Identify the parts of the
Respiratory System
It is lined with fine hairs
called cilia which filter air
before it reaches the lungs. It
keeps the windpipe open.
Review
Identify the parts of the
Respiratory System
TRACHEA
It is lined with fine hairs
called cilia which filter air
before it reaches the lungs. It
keeps the windpipe open.
Review
Identify the parts of the
Respiratory System
It warms, moistens, and
filters air as it is inhaled.
Review
Identify the parts of the
Respiratory System
NASAL CAVITY
It warms, moistens, and
filters air as it is inhaled.
Review
Identify the parts of the
Respiratory System
The functional respiratory
units in the lung where gases
are exchanged.
Review
Identify the parts of the
Respiratory System
ALVEOLI
The functional respiratory
units in the lung where gases
are exchanged.
Review
Identify the parts of the
Respiratory System
Passage way for air that
leads to trachea.
Review
Identify the parts of the
Respiratory System
PHARYNX
Passage way for air that
leads to trachea.
Review
Identify the parts of the
Respiratory System
A large sheet of skeletal
muscle below the ribs. It
controls the process of
breathing and moves up and
down during the breathing
process.
Review
Identify the parts of the
Respiratory System
DIAPHRAGM
A large sheet of skeletal
muscle below the ribs. It
controls the process of
breathing and moves up and
down during the breathing
process.
Review
Identify the parts of the
Respiratory System
Two branches at the end of
the trachea, each lead to a
lung.
Review
Identify the parts of the
Respiratory System
BRONCHI
Two branches at the end of
the trachea, each lead to a
lung.
Review
Identify the parts of the
Respiratory System
The voice box where the
vocal chords are located.
Review
Identify the parts of the
Respiratory System
LARYNX
The voice box where the
vocal chords are located.
Review
Identify the parts of the
Respiratory System
A network of smaller
branches leading from the
bronchi into the lung tissue
and ultimately to the air
sacs.
Review
Identify the parts of the
Respiratory System
BRONCHIOLES
A network of smaller
branches leading from the
bronchi into the lung tissue
and ultimately to the air
sacs.
Review
Identify the parts of the
Respiratory System
It controls opening to the
larynx.
Review
Identify the parts of the
Respiratory System
EPIGLOTTIS
It controls opening to the
larynx.
Checking of Assignment
Did you bring the following?
• an empty stick-o or 1.5 soft drink bottle
• a Y-shaped glass tube
• rubber bands and clay
• two small and one big balloons
• pair of scissors
Motivation
Close your lips tightly and pinch your
nose so that no air can enter the lungs.
Then breathe in and out. Next, feel the
lower part of your ribs. Can you feel
diaphragm going up and down?You will
find out how air is forced in and out of
your lungs.
Presentation
Watch the video clip:
MECHANISM OF BREATHING
Part 01
by 7activestudio
Motivation
Perform Activity
Mechanics of Breathing
as shown in the diagram
Presentation
Problem: What happens to the lungs as we
breathe?
What You Need:
• rubber bands and clay
• two small and one big balloons
• pair of scissorsan empty stick-o or 1.5 soft
drink bottle
• a Y-shaped glass tube
Diagram
What To Do:
1. Assemble the materials as shown in the
diagram.
2. Pull the rubber sheet downward. Observe
what happens to the balloons inside.
3. Observe what happens when the rubber
sheet is released.
What have you found out?
1. What part of the model represent the
chest cavity?
2. What part of the model represents the
lungs? How about the diaphragm?
3. What happened when the rubber sheet
was pulled downward?
4. What happened when the rubber sheet
was released?
Conclusion:
Through your chest-lung model,
demonstrate the mechanics of breathing.
Concept Formation
Answer the questions in the activity.
1. What part of the model represent the chest
cavity?
2. What part of the model represents the lungs?
How about the diaphragm?
3. What happened when the rubber sheet was
pulled downward?
4. What happened when the rubber sheet was
released?
Evaluation
Explain the mechanism of breathing
using
the chest-lung model
Assignment
Will the size of the chest cavity affects
the volume of the air drawn?
Bring the following by group:
white cartolina
pencil and eraser
marker (pentel pen)
water color or crayons

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1st science 13 constructs a model to demonstrate the mechanism of breathing

  • 1. Constructs a model to demonstrate the mechanism of breathing Science V
  • 2. Review Identify the parts of the Respiratory System It is lined with fine hairs called cilia which filter air before it reaches the lungs. It keeps the windpipe open.
  • 3. Review Identify the parts of the Respiratory System TRACHEA It is lined with fine hairs called cilia which filter air before it reaches the lungs. It keeps the windpipe open.
  • 4. Review Identify the parts of the Respiratory System It warms, moistens, and filters air as it is inhaled.
  • 5. Review Identify the parts of the Respiratory System NASAL CAVITY It warms, moistens, and filters air as it is inhaled.
  • 6. Review Identify the parts of the Respiratory System The functional respiratory units in the lung where gases are exchanged.
  • 7. Review Identify the parts of the Respiratory System ALVEOLI The functional respiratory units in the lung where gases are exchanged.
  • 8. Review Identify the parts of the Respiratory System Passage way for air that leads to trachea.
  • 9. Review Identify the parts of the Respiratory System PHARYNX Passage way for air that leads to trachea.
  • 10. Review Identify the parts of the Respiratory System A large sheet of skeletal muscle below the ribs. It controls the process of breathing and moves up and down during the breathing process.
  • 11. Review Identify the parts of the Respiratory System DIAPHRAGM A large sheet of skeletal muscle below the ribs. It controls the process of breathing and moves up and down during the breathing process.
  • 12. Review Identify the parts of the Respiratory System Two branches at the end of the trachea, each lead to a lung.
  • 13. Review Identify the parts of the Respiratory System BRONCHI Two branches at the end of the trachea, each lead to a lung.
  • 14. Review Identify the parts of the Respiratory System The voice box where the vocal chords are located.
  • 15. Review Identify the parts of the Respiratory System LARYNX The voice box where the vocal chords are located.
  • 16. Review Identify the parts of the Respiratory System A network of smaller branches leading from the bronchi into the lung tissue and ultimately to the air sacs.
  • 17. Review Identify the parts of the Respiratory System BRONCHIOLES A network of smaller branches leading from the bronchi into the lung tissue and ultimately to the air sacs.
  • 18. Review Identify the parts of the Respiratory System It controls opening to the larynx.
  • 19. Review Identify the parts of the Respiratory System EPIGLOTTIS It controls opening to the larynx.
  • 20. Checking of Assignment Did you bring the following? • an empty stick-o or 1.5 soft drink bottle • a Y-shaped glass tube • rubber bands and clay • two small and one big balloons • pair of scissors
  • 21. Motivation Close your lips tightly and pinch your nose so that no air can enter the lungs. Then breathe in and out. Next, feel the lower part of your ribs. Can you feel diaphragm going up and down?You will find out how air is forced in and out of your lungs.
  • 22. Presentation Watch the video clip: MECHANISM OF BREATHING Part 01 by 7activestudio
  • 23. Motivation Perform Activity Mechanics of Breathing as shown in the diagram
  • 24. Presentation Problem: What happens to the lungs as we breathe? What You Need: • rubber bands and clay • two small and one big balloons • pair of scissorsan empty stick-o or 1.5 soft drink bottle • a Y-shaped glass tube
  • 26. What To Do: 1. Assemble the materials as shown in the diagram. 2. Pull the rubber sheet downward. Observe what happens to the balloons inside. 3. Observe what happens when the rubber sheet is released.
  • 27. What have you found out? 1. What part of the model represent the chest cavity? 2. What part of the model represents the lungs? How about the diaphragm? 3. What happened when the rubber sheet was pulled downward? 4. What happened when the rubber sheet was released?
  • 28. Conclusion: Through your chest-lung model, demonstrate the mechanics of breathing.
  • 29. Concept Formation Answer the questions in the activity. 1. What part of the model represent the chest cavity? 2. What part of the model represents the lungs? How about the diaphragm? 3. What happened when the rubber sheet was pulled downward? 4. What happened when the rubber sheet was released?
  • 30. Evaluation Explain the mechanism of breathing using the chest-lung model
  • 31. Assignment Will the size of the chest cavity affects the volume of the air drawn? Bring the following by group: white cartolina pencil and eraser marker (pentel pen) water color or crayons