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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, where it is delivered to the rest of the body.

See also on other sites:

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


Updated October 2013
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Heart Information Center or call 1-800-292-2221.
 (Outside the U.S., call 1-832-355-6536.)

Texas Heart Institute Heart Information Center
Through this community outreach program, staff members of the Texas Heart Institute (THI) provide educational information related to the prevention, diagnosis, and treatment of cardiovascular disease. It is not the intention of THI to provide specific medical advice, but rather to provide users with information to better understand their health and their diagnosed disorders. Specific medical advice will not be provided and THI urges you to visit a qualified physician for diagnosis and for answers to your questions.
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