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CIRCULATORY SYSTEM QUIZ

Total questions: 11

Worksheet time: 15mins

Name
Class
Date
1.

  These are blood vessels which have a thick elastic middle layer that carry oxygen-rich blood away from the heart. Which blood vessel is being described?

a)

arteries

b)

veins

c)

capillaries

d)

venules

2.

These are the smallest blood vessels where exchange of gases take place. Which blood vessels have this function?

a)

capillaries

b)

veins

c)

arteries

d)

arterioles

3.

The circulatory system has an organ which pumps blood to all parts of the body. Which organ has this function?

a)

heart

b)

blood

c)

blood vessels

d)

all choices are correct

4.

Which of the following is the function of the auricles / atria ?

a)

They pump oxygen-rich blood to all parts of the body

b)

  They are responsible for receiving used blood coming from the lung and from all parts of the body.

c)

They purify blood to be distributed to all parts of the body

d)

They carry oxygen-poor blood to the lungs

5.

Which of the following statements describes the function of the ventricles?

a)

When they contract, the blood is forced away from the heart

b)

  When they relax, oxygen-poor blood is forced away from the heart for distribution to the different body parts.

c)

When they contact, oxygen-rich blood is forced away from the heart for distribution to the different body parts.

d)

When they relax, oxygen-rich blood is forced away from the heart for distribution to the different body parts

6.

Which of the following statements is NOT true about the function of the blood?

a)

It transports water, oxygen, nutrients, salts, hormones, and other substances that sustain life

b)

It is the liquid medium that is constantly flowing throughout the body

c)

It removes waste products of metabolism from the different parts of the body

d)

It makes our skin reddish in color

7.

All of the following describe the red blood cells and its function EXCEPT

a)

Red blood cells are small spherical enucleated and biconcave cells

b)

Red blood cells are manufactured in the heart

c)

Red blood cells pick up oxygen from the lungs and transport it to all the body cells

d)

Red blood cells pick up carbon dioxide from the body cells and bring it back to the lungs

8.

Which of the following describes the function of the white blood cells?

a)

White blood cells transport oxygen to the body cells

b)

White blood cells remove carbon dioxide from the body cells

c)

White blood cells help in the process of clot formation whenever a blood vessel is broken

d)

White blood cells fight invading bacteria, viruses, fungi, and parasites that cause infection

9.

  Veins are thin-walled and floppy blood vessels. Which of the following is the function of veins?

a)

They carry oxygen-poor blood from the heart to the body parts

b)

They carry oxygen-rich blood from the body parts back to the heart

c)

They carry oxygen-poor blood from the body parts to the heart

d)

They carry oxygen-rich blood from the heart to the body parts

10.

Which of the following blood components provide the major defense for our bodies against invading bacteria and viruses?

a)

platelets

b)

white blood cells

c)

red blood cells

d)

plasma

11.

Draw the heart and label its parts correctly