Congenital Heart Institute of Texas

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Education

 

dingbat  About the heart - Normal Heart and Blood Flow
human heart

The normal heart is divided into 4 chambers:

  • right atrium
  • left atrium
  • right ventricle
  • left ventricle
The chambers on the right side of the heart receive blood from the veins ("blue" blood). The chambers on the left side pump oxygen-rich ("red") blood out of the heart to the rest of the body. Four valves act as one-way doors to direct blood flow:
  • aortic valve
  • mitral valve
  • pulmonary valve
  • tricuspid valve
A wall (septum) divides the right and left side of the heart.

 

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