Heart

These vessels carry blood away from the heart.

• arteries

• veins

• capillaries

• superior vena cava

What is the main function of the heart?

• To prevent blood from moving in the wrong direction

• To regulate body temperature

• To pump blood throughout the body

• To replace oxygen with carbon dioxide

How many chambers does the heart have?

• 4

• 3

• 2

• 1

What is the upper chamber of the heart that receives blood from the body?

• Aorta

• Right atrium

• Right ventricle

• Left atrium

What is the main function of valves in the circulatory system?

• To pump blood throughout the body

• To prevent blood from moving in the wrong direction

• To prevent platelets from clotting the blood

• To keep the body stable

Which can ONLY have blood cells travel single file in them?

• Capillaries

• Arteries

• Septum

• Veins

#2

• Septum

• Right ventricle

• Left ventricle

• Right Atrium

#9

• Right Atrium

• Right ventricle

• Left atrium

• Left ventricle

#5

• Pulmonary Valve

• Aorta

• Superior Vena Cava

• Mitral Valve

#3

• Right ventricle

• Right atrium

• Septum

• Mitral valve