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Worksheets

Circulatory System in Humans

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.
Pumps oxygen-poor blood to the lungs
a)
Right Ventricle
b)
Right Atrium
c)
Left Ventricle
d)
Left Atrium
2.
Receives blood from the body that is low in oxygen and high in carbon dioxide
a)
Right Atrium
b)
Right Ventricle
c)
Left Atrium
d)
Left Ventricle
3.
Receives oxygen-rich blood from the lungs
a)
Right Ventricle
b)
Left Ventricle
c)
Right Atrium
d)
Left Atrium
4.

Pumps the oxygen-rich blood to all parts of the body

a)

Right Ventricle

b)

Left Ventricle

c)

Right Atrium

d)

Left Atrium

5.
Carries the blood from the ventricle to the body
a)
Aorta
b)
Atrium
c)
Valve
d)
Septum
6.
This is the thickest of the blood vessels. It leads away from the heart.
a)
veins
b)
capillaries
c)
arteries
7.
This blood vessel has valves to prevent the back flow of blood. 
a)
veins
b)
capillaries
c)
arteries
8.
This type of blood cell is responsible for fighting disease.
a)
red blood cell
b)
plasma
c)
white blood cell
9.
This is the straw colored liquid portion of the blood that carries dissolved nutrients.
a)
red blood cells
b)
plasma
c)
white blood cells
10.
These are the oxygen carrying cells of the blood.
a)
red blood cells
b)
plasma
c)
white blood cells
11.

What is haemoglobin?

a)

a molecule that carries oxygen from the lungs to the body

b)

the liquid part of the blood, which is made mostly of water

c)

cell fragments in the blood stream

d)

the net that clots your blood

12.

The cardiovascular system is made up of which of the following?

a)

Heart

b)

Blood Vessels

c)

Blood

d)

All of the Above

13.

How many chambers does the heart consist of?

a)

2

b)

3

c)

4

d)

6

14.

What do the lungs provide the blood with?

a)

oxygen

b)

blood

c)

hydrogen

d)

carbon dioxide

15.

What is the main function of the circulatory system?

a)

secrete enzymes

b)

digest proteins

c)

produce hormones

d)

transport materials

16.

Which gas is transported by the circulatory system in humans and is used by cells during respiration to release energy stored in food?

a)

carbon dioxide

b)

nitrogen

c)

hydrogen

d)

oxygen

17.

State one reason why blood at location B contains more oxygen than blood at location A.

a)

because blood at location A goes to the lungs

b)

because blood at location A comes from the lungs

c)

because blood at location B comes from the lungs

d)

because blood at location B goes to the lungs

18.

State the general relationship between exercise and heart rate in humans.

a)

If a person exercises, then their heart rate will not change

b)

If a person exercises, then their heart rate will increase

c)

If a person exercises, then their heart rate will decrease

d)

Person exercising and heart rate are not related

19.

The human body has specialized cells, such as white blood cells, to help protect it from many diseases. Describe what these specialized cells do to protect the body from the disease.

a)

they carry oxygen

b)

they fight and destroy germs

c)

they give blood its color

d)

they clot when we get a cut

20.

Shape of leucocytes

a)

Biconcave

b)

Disc-shaped

c)

Spherical

d)

None of the above

21.

The circulation of blood between heart and lungs

a)

Systemic circulation

b)

Pulmonary circulation

22.

The heart is enclosed in a double layered membranous sac called

a)

Pericardium

b)

Meninges

c)

Pleural membrane

d)

None of the above

23.

The left side of heart comprises of deoxygenated blood

a)

True

b)

False

24.

The valve between left auricle and left ventricle is called

a)

Tricuspid valve

b)

Septum

c)

Bicuspid valve

25.

Largest artery in a human body

a)

Superior Vena Cava

b)

Inferior Vena Cava

c)

Aorta

d)

None of the above

26.

WBC are also called -

a)

Erythrocytes

b)

Thrombocytes

c)

Leucocytes

d)

Plasma

27.

Auricles are also called -

a)

Thrombocytes

b)

Pericardium

c)

Septum

d)

Atria

28.

Pulmonary artery carries which type of blood -

a)

Deoxygenated blood

b)

Oxygenated blood

c)

All of the above

d)

None of the above

29.

Where does the exchange of gases takes place and blood is oxygenated -

a)

Heart

b)

Lungs

c)

Brain

d)

Kidney

30.

Ventricles are separated from each other by -

a)

Inter-auricular septum

b)

Inter-ventricular septum

c)

Pericardial fluid

d)

None of the above

31.

The heart is enclosed by a single membrane called pericardium

a)

True

b)

False

32.

Double Circulation involves -

a)

Systemic Circulation

b)

Pulmonary Circulation

c)

Both systemic and pulmonary circulation

d)

None of the above

33.

Oxygenated blood is delivered to all body parts by -

a)

Lungs

b)

Kidneys

c)

Superior vena cava

d)

Aorta

34.

Which of the following blood cells are involved in blood clotting?

a)

Red Blood Cells

b)

Leucocytes

c)

Thrombocytes

d)

Erythrocytes

35.

The finest of all blood vessels are the:

a)

veins

b)

arteries

c)

vena cavae

d)

capillaries

36.

Choose the correct labellings:

a)

1- AORTA 2- LEFT VENTRICLE 3- SUPERIOR VENA CAVA 4-RIGHT VENTRICLE

b)

1- RIGHT VENTRICLE 2- AORTA 3- SUPERIOR VENA CAVA 4-LEFT VENTRICLE

c)

1- LEFT VENTRICLE 2- AORTA 3- SUPERIOR VENA CAVA 4-RIGHT VENTRICLE

d)

1- RIGHT VENTRICLE 2- SUPERIOR VENA CAVA 3- AORTA 4-LEFT VENTRICLE

37.

The right side of the heart contains oxygenated blood. TRUE OR FALSE ?

a)

TRUE

b)

FALSE

38.

The only vein to carry oxygenated blood is ________________

a)

pulmonary vein

b)

pulmonary artery

c)

aorta

d)

inferior vena cava

39.

Which is not a function of circulatory system?

a)

Protects the body against disease and infection.

b)

Clotting stops bleeding after injury.

c)

Circulates oxygen and removes carbon dioxide.

d)

Receiving information about the environment around us and generating responses to that information

40.

The vessels that carry blood away from the heart are called _____________

a)

arteries

b)

capillaries

c)

bronchi

d)

veins

41.

The human heart has four chambers.

a)

True

b)

False

42.

If the left side of your heart receives oxygen-rich blood from your lungs and pumps it through your arteries to the rest of your body.What happened in the right side of your heart?

a)

There is only one side of the heart.

b)

The same as the left side of the heart

c)

The right side of your heart receives oxygen-rich blood from your artery and pumps it to your lungs, where it picks up carbon dioxide and gets rid of oxygen..

d)

The right side of your heart receives oxygen-poor blood from the body through your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide.

43.

The left ventricle ________________________

a)

receives oxygen-poor blood from the body and pumps it to the right ventricle through the tricuspid valve.

b)

pumps the oxygen-poor blood to the lungs through the pulmonary valve.

c)

receives oxygen-rich blood from the lungs and pumps it to the left ventricle through the mitral valve.

d)

pumps the oxygen-rich blood through the aortic valve out to the rest of the body.

44.

The movement of blood from the heart to the lungs and back to the heart.

a)

Coronary circulation

b)

Portal circulation

c)

Pulmonary circulation

d)

Systemic circulation

45.

Which of the following vessels has thin muscle wall and a large lumen?

a)

Vein

b)

Artery

c)

Capillary

d)

Aorta

46.

Which vessel mainly transport deoxygenated blood?

a)

Artery

b)

Aorta

c)

Capillary

d)

Vein

47.

Which of the following has walls that are one cell thick and is a site for diffusion?

a)

Vein

b)

Artery

c)

Capillary

d)

Aorta

48.

Blood flows from the vena cava into which chamber of the heart?

a)

Left atrium

b)

Right atrium

c)

Left ventricle

d)

Right ventricle

49.

All arteries carry oxygenated blood.

a)

True

b)

False

50.

___________ carry blood at high pressure and ___________ carry blood at low pressure.

a)

Arteries; veins

b)

Capillaries; veins

c)

Veins; arteries

d)

Veins; capillaries