Cardiovascular System

How many valves does  the heart have ? 

• 7
• 4
• 3 
• 2 

How many chambers does the heart have ? 

• 4
• 6
• 3
• 1

• Left atrium
• Right atrium
• Left ventricle
• Right ventricle

Blood enters the right atrium through 

• pulmonary veins
• vena cavaes
• pulmonary arteries
• aorta

• Pulmonary veins
• Pulmonary artery
• Aorta
• Vena cava

Which part of the heart pumps deoxygenated (oxygen-poor) blood?

• Left side
• Right side
• Top side
• Bottom side

Which vessels carry blood to the heart?

• Veins
• Arteries
• Capillaries

Which vessels carry blood away from the heart?

• Veins
• Arteries
• Capillaries

Which part of the heart pumps oxygenated blood?

• Left side
• Right side
• Top side
• Bottom side

What creates the "lub dub" heart sounds?

• Flow of blood
• Closing of valves
• Opening of valves
• Breathing