Heart diagram

• A = pulmonary artery

  
• B = Vena Cava

  
• C = Right Atrium

  
• D = Heart Valve

  
• E = Tendons attached to valve and heart wall

  
• F =Right Ventricle

  
• G = Left Ventricle

  
• H = Heart Valve

  
• J = Pulmonary Vein

  
• K = Aorta

  
• Blood enters the heart through the atria. Deoxygenated blood enters through the right atrium, oxygenated through the left atrium
• Blood is pumped into the aorta, which carries oxygenated blood away from the heart around the body.
• Deoxygenated blood enters the right atrium from the vena cava.
• Pulmonary artery carries deoxygenated blood from the heart to the lungs.
• Pulmonary vein carries oxygenated blood from the lungs to the heart.
• 1 = semi-lunar valve 


  Diagram:

  
• 2= tricuspid / right atrioventricular valve 


  Diagram:

  
• 3 = bicuspid / left atrioventricular valve/ mitrial valve 


  Diagram:

  
• 4 = semi-lunar valve 


  Diagram:

  
• Tricuspid valve function 


  Tricuspid valve separates the right atria from the right ventricle
• Bicuspid valve function 


  the bicuspid/mitral valve separates the left atria from the left ventricle.
• Semilunar valve function 


  The semilunar (SL) valves connect the ventricles to the arteries (pulmonary artery and aorta). They prevent the flow of blood back into the heart.
• 1= non-conducting collagen fibres tissue 


  Diagram:

  
• 2= bundle of His


  Diagram:

  
• 3 = Purkyne tissue


  Diagram: