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The Heart Valves
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An Incredible Machine: Heart Valves 

An Incredible Machine
Bonus poster (PDF)
Valves of the Heart

 
 

 The New Project Heart - heart anatomy illustrations and animations for grades K-6.
Heart anatomy illustrations and animations
for grades K-6.

The Heart Valves
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 Four valves regulate blood flow through the heart.

Four valves regulate blood flow through your heart:
  • The tricuspid valve regulates blood flow between the right atrium and right ventricle.
     
  • The pulmonary valve controls blood flow from the right ventricle into the pulmonary arteries, which carry blood to your lungs to pick up oxygen.
     
  • The mitral valve lets oxygen-rich blood from your lungs pass from the left atrium into the left ventricle.
     
  • The aortic valve opens the way for oxygen-rich blood to pass from the left ventricle into the aorta, your body's largest artery.

See also on other sites:

MedlinePlus
www.nlm.nih.gov/medlineplus/ency/imagepages/9380.htm
Heart valves


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