The Cardiovascular System

What is the name of the part labelled 3?

• Right Atrium
• Left Atrium
• Right Ventricle
• Left Ventricle

What is the name of the part labelled 2?

• Right Atrium
• Left Atrium
• Right Ventricle
• Left Ventricle

What is the name of the part labelled 4?

• Right Atrium
• Left Atrium
• Right Ventricle
• Left Ventricle

What is the function of a valve?

• Helps blood to clot
• Keeps blood flowing in all directions
• Keeps blood flowing in one direction
• Stops blood from flowing

Which part of the heart pumps deoxygenated (oxygen-poor) blood?

• Left side
• Right side
• Top side
• Bottom side

How many chambers does the heart have ? 

• 4
• 6
• 3
• 1

Which is the muscular wall that separates the heart into right and left sides?

• valves
• ventricles
• atria
• septum

A hollow, muscular organ that pumps blood throughout the body.

• Skeleton
• Heart
• Vein
• Artery

How many valves does  the heart have ? 

• 7
• 4
• 3 
• 2 

Why is the muscle on the left side of the heart bigger?

• That side of the heart is bigger

• Because it has to pump blood to the rest of the body

• Because it has to pump blood to the lungs

• It should not be thicker, that's a sign of heart disease