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A-Level Biology OCR A

Blood Left Atrium Structure Receives Pulmonary Pumps Describe

Front Describe the structure of the heart & state what each chamber does
Back Structure of the heart:
  • Consists of four chambers - left and right atria, left and right ventricles
  • Right atrium receives blood from venae cavae, left atrium receives blood from the pulmonary vein
  • Right ventricle pumps blood into the pulmonary artery, right atrium pumps blood through the aorta
  • Made out of cardiac muscle, coronary arteries supply it with blood 
  • Surrounded by inelastic pericardial membranes 

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