The flow starts with the Superior Vena Cava.The blood then enters into the right atrium 
The  Blood goes through the  open tricuspid valve  into the right ventricle . 
When the ventricle is full the valve goes from open to shut for the purpose of preventing blood from flowing  backwards. 
Right Ventricle 
The blood exits the heart into the pulmonary valve to the pulmonary arteries
Pulmonary Artery 
When the blood goes the the right and left pulmonary arteries to be carried over to the lungs. 
Th e blood in the lungs go to the right and left pulmonary veins  
Pulmonary Vein 
 
  The blood enters into the left atrium 
  After, it goes to the bicuspid valve to the left ventricle 
Left Ventricle 
Left Atrium 
The aorta feeds the body through blood vessels 
Aortic Valve 
Aorta 
The left ventricle pumps the blood through the aortic valve to the aorta 
The aorta gives the body the blood it needs. The body takes the blood  and gives the rest of it through the blood vessels the Superior and Inferior Vena Cava.
Inferior Vena Cava 
Superior Vena Cava 
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