Circulatory System

Which of the following delivers oxygen to cells?

• Red Blood cells
• White blood cells
• Platelets
• Plasma

Which vessels carry blood AWAY from the heart?

• arteries

• veins

• capillaries

How many chambers does the heart have ? 

• 4
• 6
• 3
• 1

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

• Skeleton
• Heart
• Vein
• Artery

A blood vessel that carries blood BACK to the heart.

• Cardiovascular System

• Heart

• Vein

• Artery

______________ are the smallest blood vessels and where gases (oxygen and carbon dioxide) are exchanged.

• Arteries

• Veins

• Capillaries

arteries, veins, and capillaries are three types of __________

• heart valves
• blood vessels
• cells
• veins

What does Deoxygenated mean?

• Oxygen-rich
• Blood flow
• Oxygen-poor
• Water Flow

Heart rate is ______

• The number of times the heart beats in a 1 minute

• The number of times the heart beats in 1 second

• The same throughout the day

• The number of times the heart beats in 10 minutes

What is the function of the valves of the heart?

• Prevent heart disease

• Keep blood moving in one direction

• Increase the heart rate

• Reduce the heart rate