The circulatory system transports blood throughout the body via arteries, veins, and capillaries. The heart pumps oxygenated blood received from the lungs through the left side of the heart to the arteries and deoxygenated blood received from the body through the right side to the lungs. Blood contains red blood cells that deliver oxygen to tissues, white blood cells that fight infection, and platelets involved in clotting. Arteries carry oxygenated blood away from the heart while veins carry deoxygenated blood back to the heart. Capillaries allow for the exchange of oxygen and nutrients with cells.

1. FUNCTIONS OF EACH PART
OF THE CIRCULATORY
SYSTEM
BY: JENIL URIANZA-MOISES

2. OBJECTIVES:
Explain the function of the circulatory
system
Describe the function of each part of the
circulatory system

3. Our CIRCULATORY SYSTEM
is the transport system of
the body. It is an intricate
network of long, slender
branches originating from
the heart and running
through the different parts
of the body.

4. The HEART
pumps and
moves blood
through the
body

5. RIGHT ATRIUM receives deoxygenated blood

6. RIGHT VENTRICLE pumps blood to the lungs

7. LEFT ATRIUM receives oxygenated blood

8. BLOOD is the transport system

9. RED BLOOD CELL (Erythrocytes) deliver oxygen
to the cells

10. WHITE BLOOD CELLS (leukocytes) fight germs
that enter the body

11. PLATELETS (thrombocytes) are used in blood
clotting

12. PLASMA is where blood cells are
suspended

13. BLOOD VESSELS are tubes that carry blood to
and from the heart

14. ARTERIES carry blood that contains nutrients
and oxygen from the heart to the different parts
of the body
VEINS carry blood back
to the heart.
CAPILLARIES carry
oxygen and nutrients to
the cells

15. Fill in the blanks with the correct answer.
1. The movement of blood as it distributes food to the
body is called ______________.
2. The primary function of the _____________ corpuscle
is to carry oxygen to the cells of the body.
3. The ______________ makes the blood red.
4. The ______________ carries the digested food through

16. all parts of the body.
5. Our body needs ______________ to make us grow and
keep us healthy.
6. The ______________ corpuscle fight bacteria and germs
that enter our body.
7. The ______________ carry blood towards the heart.
8. The ______________ carry blood away from the heart.
9. The ______________ make the blood clot and stop
bleeding in wounds.
10. The heart is about the size of a _______________.

17. EVALUATION
Describe the functions of these parts of the circulatory
system.
A. 1. blood vessel
2. heart
3. blood
B. What if the different parts of the circulatory system
do not function properly?
C. Explain the functions of the circulatory system.

18. ASSIGNMENT
Write a paragraph explaining, “Why blood is called the
river of life”.
RBEC-PELC 2002 Science & Health VI, Unit 1, 1.2 p.3
Science for Better Health and Environment pp. 21-22 by Efrain E. Abracia