6.2 Blood System

William Harvey discovered...

• The heart is a muscle

• That blood flows in a circuit through the heart

• That blood is the main fluid in the body

• That the heart is a tissue

Arteries carry oxygen rich blood away from the heart.

• True

• False

______________ are the smallest blood vessels.

• Arteries
• Veins
• Capillaries

______________ are the second largest blood vessel. 

• Arteries
• Veins
• Capillaries

These carry blood to the heart:

• arteries
• veins
• capillaries
• arterioles

These have muscular walls:

• capillaries
• veins
• venules
• arteries

These have valves that prevent backflow of blood

• arteries
• veins
• arterioles
• capillaries

What is the space between the structure of a blood vessel?

• Artery
• Lumen
• Gap
• Loomen

I have a large lumen, I have thin muscular walls.

• Artery

• Vein

• Capillary

• Arteriole

Largest artery of the body.

• Intercostal arteries
• Bronchial arteries
• Aorta
• Abdominal aorta