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Cardiovascular System 6th grade

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

____________ carry blood AWAY from the heart.

a)

veins

b)

arteries

c)

capillaries

d)

plasma

2.

This liquid part of the blood carries digested food.

a)

platelets

b)

white blood cells

c)

plasma

d)

red blood cells

3.

This type of blood cell helps the blood to clot

a)

white

b)

red

c)

platelets

d)

antibodies

4.

The upper chambers of the heart are called ________.

a)

ventricle

b)

valves

c)

septum

d)

atrium

5.

This type of blood cell fights off infection or germs.

a)

red

b)

white

c)

platelet

d)

aorta

6.

A child has this many quarts of blood.

a)

5

b)

3

c)

1

d)

2

7.

This type of blood cell carries oxygen to all parts of our body.

a)

white

b)

platelets

c)

red

d)

antibodies

8.

Door like flaps in the heart that open and close and keep blood flowing in the same direction.

a)

ventricles

b)

aorta

c)

venae cava

d)

valves

9.

Largest artery in our bodies.

a)

vena cava

b)

pulmonary artery

c)

aorta

d)

ventricle

10.

The bottom chambers of the heart are called ___________.

a)

atrium

b)

aorta

c)

ventricles

d)

vena cava

11.

The smallest of all of the types of blood vessels where the gas exchange occurs.

a)

capillaries

b)

veins

c)

arteries

d)

antibodies

12.

This part of the heart supplies blood to the lungs.

a)

pulmonary vein

b)

pulmonary artery

c)

ventricle

d)

aorta

13.

Two large veins that enter the heart.

a)

valves

b)

aorta

c)

varicose veins

d)

venae cava

14.

The pressure of blood against the walls of the arteries.

a)

circulation

b)

cardiac muscle

c)

blood pressure

d)

pulse

15.

Manufactured by the body to help protect you from disease.

a)

oxygen

b)

antibodies

c)

scab

d)

white blood cells

16.

The expanding of the arteries after each heartbeat.

a)

aorta

b)

circulation

c)

blood pressure

d)

pulse

17.

A blood clot that forms on the skin.

a)

capillaries

b)

vein

c)

scab

d)

platelet

18.

This type of blood vessel carries blood TO the heart.

a)

capillaries

b)

arteries

c)

veins

d)

platelets

19.

The part of your blood that is liquid and carries digested food.

a)

platelets

b)

red blood cells

c)

white blood cells

d)

plasma

20.

Antibodies help fight

a)

platelets

b)

germs

c)

Christmas

d)

white blood cells

21.

This mineral gives red blood cells their color.

a)

copper

b)

calcium

c)

iron

d)

oxygen