Circulatory System

How much does the heart weigh?

• 4 pounds
• 11 ounces
• 25 pounds 
• 1 pound

What is the type of blood vessel that returns to the heart?

• Artery
• vein
• Capillaries 
• Blood Vessel

What does blood do?

• Carries Water to cells
• Carries Oxygen to cells
• Carries Food to cells
• All of the above 

What is the main function of the artery?

• It controls your brain and your thought process.
• They carry oxygen- poor blood BACK to the heart.
• Arteries carry oxygen- rich blood AWAY from the heart.
• It receives information (senses) and sends messages to the body about how to react to things.

Which is the correct definition of the Circulatory system?

• The system fights disease so the body stays healthy.
• The system that circulates blood and oxygen through the body, consisting of the heart,blood vessels,and blood.
• Breaks down food into smaller pieces and absorbs those nutrients into the body.
• Provides shape and structure for the body.

Thin-walled vessels that allow for the exchange of O_{2 ,} CO₂, nutrients and wastes between blood cells or air sacs in the lungs

• Arteries
• Veins
• Capillaries

The heart has ___ chambers.

• 1
• 2
• 3
• 4

PLATELETS ARE CELL FRAGMENT THAT 

• HELP YOUR BLOOD CLOT
• CARRY OXYGEN IN THE BLOOD
• FIGHT INFECTION
• EXCHANGES GASES IN THE LUNGS

arteries, veins, and capillaries are three types of __________

• heart valves
• blood vessels
• cells
• veins

What is the main organ in the circulatory system?

• vein
• lung
• heart
• aorta