Blood enters the heart at the ....

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

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

Another name for the circulatory system is __________________________________________ because they describe the system that consists of the heart, blood vessels, and blood.

• Cardiovascular System
• Heart
• Vein
• Artery