First quarter of the school year will focus with the Respiratory and Circulatory System Working with other System.

2. SCIENCE 9

3. RESPIRATORY
CIRCULATORY

4. SHARE YOUR LEARNINGS TO THE FOLLOWING PHOTOS.
SHARE KO LANG!

8. 1.What does each part of
malunggay leaves represent?
2.Describe the pathway of
oxygen in the breathing
system.

9. Generalization
1. What are the different parts
of the human respiratory
system?
2. Describe the function of
each part of the breathing
system.

10. APPLICATION
What will happen if one part
of the system fails to carry out
its function properly?

11. Answer the Guide Questions:
1. What does each part of the constructed
lung model represent?
2. What happens as you pull down the balloon
at the bottom of the model?
3. What happens as you push up the balloon?
4. How does the movement of the diaphragm
cause the air to go in and out of the lungs?
5. What would likely to happen if you prick the
balloon?

12. The circulatory system is the life support structure
that nourishes your cells with food and oxygen. It
also carries away the waste products. The
circulatory system can be compared to a complex
arrangement of highways, avenues and lanes
connecting all the cells together into a
neighborhood. Sequentially, the community of cells
sustains the body to stay alive.

13. The following are the three
major parts of the circulatory
system, with their roles:
1. Heart – pumps the blood
throughout the body

14. 2. Blood vessel – carries the
blood throughout the body
Arteries - carry oxygenated
blood away from the heart to
the cells, tissues, and organs of
the body

15. Veins – carry deoxygenated blood
to the heart
Capillaries - the smallest blood
vessels in the body, connecting the
smallest arteries to the smallest
veins - the actual site where gases
and nutrients are exchanged

16. Blood – carries the material
through the body.

17. CIRCULATION
TYPE OF CIRCULATION DESCRIPTION DIAGRAM
1. Pulmonary Circulation
- Movement of blood from the heart to the lungs,
and back to the heart
2. Coronary Circulation
- Movement of blood through the tissues of the
heart
3. Systemic Circulation
- Movement of blood from the heart to the rest of
the body, excluding the lungs

18. Application:
• Why do you think some
people experienced difficulty
in breathing?
..

20. 1. What is cigarette smoking?
2. What are the disadvantages of
smokers in terms of their health
habits under circulatory system?
3. What are the effects of
cigarette smoking in a person?

21. Explain the quote: “Today
it’s me because of you! But
tomorrow it’s you, because
of me! Quit Smoking before
Smoking Quits you!”

22. 1. In your own way, how can you
convince a smoker to quit
smoking?
2. Can you give the different
illnesses in the circulatory system
from cigarette smoking?

23. The best way to prevent diseases in the respiratory
and circulatory systems is to have a healthy
lifestyle, which includes balanced diet, regular
exercise, adequate rest, proper hygiene, and
avoiding vices such as cigarette and alcohol
drinking. Circulatory and respiratory disease can
easily be detected with regular health check –up
and physical screening.

24. Directions: Read each question carefully and choose the
statement that best answers each question.
1. In the lungs, oxygen is absorbed into the blood. In which
part of the lungs does this mainly happen?
a. alveoli b. bronchi c. bronchioles d. trachea
2. Which of the following correctly name the parts labeled
in the diagram on the right?
a. A = alveolus, B = bronchiole
b. A = bronchiole, B = trachea
c. A = trachea, B = bronchiole
d. A = trachea, B = bronchus

25. 3. Analyze the diagram of the human breathing system on the left.
Which of the following is the correct order for air passing through the
lungs?
a. trachea, bronchus, bronchiole, alveoli
b. trachea, alveoli, bronchi, bronchioles
c. bronchus, trachea, bronchioles, alveoli
d. bronchus, alveoli, trachea, bronchioles
4. Which process does not occur in the nasal cavity?
a. Exchange of gases b. Humidification of inhaled air
c. Trapping of large foreign bodies d. Warming of inhaled air
5. Which of the choices below is not a functional process performed by
the respiratory system?
a. external respiration c. pulmonary ventilation