Circulatory system

1. Grade 9
Pupils

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5. 1. What you have learn in the video presentation?
2. How heart pumps blood?
3. Why is it circulatory is important in human body?

7. Learning Objectives
At the end of the lesson, the student should be able
to:
1. Explain the function of the circulatory system.
2. Describe the parts and function of the heart.
3. Compare flow of systematic, pulmonary and
coronary circulation.

8. 4. Illustrate how the organs work together in
circulation.
5. Appreciate the importance of circulatory of the
human body.

10. Direction: With the same groups the
teacher will give a material and procedure
for the activity. Each group must have one
representative to answer the given
questions after the activity based on their
observation.

11. Materials:
1 beaker or wide mouthed jar
1 balloon
2 flexible drinking straws
1 pair of scissors

12. Heart
Blood
Blood Vessels

13. The circulatory system is
the life support structure
that nourishes your cells
with nutrients from the food
you eat and oxygen from the
air you breathe

14. The role of the circulatory
system is to move nutrients,
hormones, oxygen and other
gases to your body's organs,
muscles and tissues, to use for
energy, growth and repair. Heart
disease, stroke and high or low
blood pressure, are common
circulatory system conditions.

15. 2 3
Heart Blood Vesels Blood
1

16. 1
remainder
is to pump blood
and oxygen
around the body
and deliver waste
products (carbon
dioxide) back to
the lungs to be
removed.

17. remainder
• Right atrium - Your right
atrium kicks off the action
by taking in all the oxygen-
poor (deoxygenated) blood
from your body. Blood
enters through two large
veins called your superior
vena cava and your inferior
vena cava.

18. remainder
2. Left atrium - receives
oxygenated blood from
the four pulmonary
veins, and pumps it
through the left
atrioventricular orifice
(guarded by the mitral
valve) into the left
ventricle

19. remainder
3. Right ventricle -
receives deoxygenated
blood from the right
atrium, and pumps it
through the
pulmonary orifice
(guarded by the
pulmonary valve), into
the pulmonary artery.

20. remainder
4. Left ventricle -
receives oxygenated
blood from the left
atrium, and pumps it
through the aortic
orifice (guarded by
the aortic valve) into
the aorta

21. –carries the blood throughout the body.
3 main types
• Arteries
• Veins
• Capillaries

22. -carry
oxygenated blood
away from the
heart to the cells,
tissues and
organs of the
body.

23. - carry
deoxygenated
blood to the
heart.

24. -the smallest
blood vessels in
the body,
connecting the
smallest arteries
to the smallest
veins the actual
site where gases
and nutrients are
exchanged.

25. remainder
carries the
materials
throughout
the body

26. remainder
• red blood cells
• white blood cell
• platelets
• plasma.

27. remainder
Red blood cells
- also known as
erythrocytes, are responsible
for carrying oxygen from the
lungs to the body's tissues
and organs.

28. remainder
White blood cells, or
leukocytes
-are an essential part of
the immune system. They
help defend the body
against infections and
foreign substances.

29. remainder
Platelets- are small cell
fragments that play a
crucial role in blood
clotting.

30. Plasma
- is the liquid component of
blood, making up about 55% of
its volume. It is a yellowish fluid
that carries various substances,
including nutrients, hormones,
waste products, and antibodies.

32. - Movement
of blood
from the
heart to the
lungs, and
back to the
heart.

33. - Movement of
blood from the
heart to the
rest of the
body,
excluding the
lungs.

34. - Movement
of blood from
the heart to
the rest of the
body,
excluding the
lungs.

39. Direction: Get 1/4 sheet of paper and
answer the following questions. Choose the
letter of the correct answer.

40. 1. Which chamber does oxygenated blood
enter the heart first?
a)Left ventricle
b)Left atrium
c)Right atrium
d)Right ventricle

41. 2. Which blood vessel carries blood from
the heart to the lungs to receive oxygen?
a)Aorta
b)Vena cava
c)Pulmonary artery
d)Pulmonary vein

42. 3. What happens to the diaphragm muscle
when you breathe in, or inhale?
a)Expands
b)Contracts
c)Relaxes
d)Compress

43. 4. What happens to the diaphragm muscle
when you breathe out, or exhale?
a)Expands
b)Contracts
c)Relaxes
d)Compress

44. 5. The ________ is the life support
structure that nourishes your cell with
nutrients from the food you eat and oxygen
from the air you breathe.
a)Circulatory System
b)Respiratory System
c)Cardiovascular System
d)Systemic System

45. 6. It is the central organ of circulatory
system.
a.)Lungs
b.)Heart
c.)Blood vessel
d.)Blood

46. 7. It carries oxygenated blood away from
the heart to the cells, tissues and the
organs of the body.
a.)Veins
b.)Blood
c.)Capillaries
d.)Arteries

47. 8. This type of circulations where the
movement of blood is from the heart to the
lungs, and back to the heart.
a.)Coronary Circulation
b.)Systematic Circulation
c.)Pulmonary Circulation
d.)Blood Circulation

48. 9. This type of circulation where the
movement of blood through the tissues of
the heart.
a.)Coronary Circulation
b.)Systematic Circulation
c.)Pulmonary Circulation
d.)Blood Circulation

49. 10. This type of circulation where the
movement of blood from the heart to the
rest of the body, excluding the lungs.
a.)Coronary Circulation
b.)Systematic Circulation
c.)Pulmonary Circulation
d.)Blood Circulation