The Blood Module

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Modified In-School Off-School Approach Modules (MISOSA)

Distance Education for Elementary Schools

SELF-INSTRUCTIONAL MATERIALS

THE BLOOD

Department of Education

BUREAU OF ELEMENTARY EDUCATION2nd Floor Bonifacio Building


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Revised 2010by the Learning Resource Management and Development System (LRMDS),

DepEd - Division of Negros Occidental

under the Strengthening the Implementation of Basic Education

in Selected Provinces in the Visayas (STRIVE).

This edition has been revised with permission for online distribution

through the Learning Resource Management Development System (LRMDS) Portal

Section 9 of Presidential Decree No. 49 provides:

No copyright shall subsist in any work of theGovernment of the Republic of the Philippines. However,prior approval of the government agency or office whereinthe work is created shall be necessary for exploitation ofsuch work for profit.

This material was originally produced by the Bureau of ElementaryEducation of the Department of Education, Republic of the Philippines.


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THE BLOOD

Write the name of the parts of the circulatory system as indicated by each number.

At the end of the lesson, you will be able to:

Identify the parts of the blood Describe the functions of each part


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When you have wounded yourself, blood comes out. Sometimes blood keeps on flowing

because it continuously flows in your body. You need to stop the flow of blood.

In this lesson you will learn more about your blood.

Activity 1. What does your blood do in your body?

Study the illustration below:

What does the blood carry with it? (letter A.)

What does the blood pick up? (letter B.)


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Activity 2. What are the parts of the blood and its function?

What to do:

1. Study the illustration of the solid parts of the blood.

2. Read and learn more about them.

Red blood cells (erythrocytes)

Are the most numerous and make upalmost half of the bloods volume

Are filled with hemoglobin whichenables them to carry from the lungs

and deliver it to all body tissues. Oxygen is used to provide energy to

cells, leaving carbon dioxide as a waste

product, which the red blood cells

carry away from the tissues and back

to the lungs.

Are produced in the red marrow of thebones.

White blood cells (leukocytes)

are fewer in number with a ratio ofabout 1 WBC to every 660 RBC.

protect the body against infections bychanging their shapes so that they can

move through capillary walls and

surround foreign organisms entering the

body.

produce antibodies to protect the bodyagainst diseases.

one of 5 kinds (basophil, eosinophil,lymphocyte, monocyte and neutrophil).

are produced in the bone marrow, thelymph nodes and the spleen.


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Answer these:

1. Fill up the table below.

Parts/Components of the Blood Function

1.

2.

3.4.

Platelets (thrombocytes)

are cell like particles smaller that red orwhite blood cells

help seal the blood vessel and stopbleeding.

Release substances that help promoteclotting.

Produce blood clot with the help ofvitamin K and calcium.

Plasma

consist of mostly water containingdissolve salts and protein (mostly

albumin and antibodies).

carries hormones, electrolytes, fats,sugar, minerals and vitamins to the

buddy tissues.

Carries antibodies to fight diseasecarrying germs


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I LEARNED THAT:

The blood is a combination of liquid, cells, and cell like particles that travels

through the arteries, capillaries and veins.

Blood delivers oxygen and essentials nutrients to tissues and carries away carbon

dioxide and other waste products.

1. Lina has a big wound. After a few seconds, it stop bleeding. Can you tell why?

2. What will happen if your body lacks red blood cells?3. Why people die if they lose too much blood?

I. match column A with column B. Write the letter of the correct answer.

A B

1. Red blood cells

2. White blood cells

3. Platelets

4. Plasma

5. Blood

6. Hemoglobin

a. fight germs that cause infection

b. liquid part of the blood

c. provides the cell of the body with

oxygen and nutrients

d. are fluid within the blood vessel

e. forms blood clot to stop bleeding

f. red pigment of the blood containing

iron

Documents

The Blood Module