| Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | Ventricle (belly or pouch)
 |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Upper right or left chamber of the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Membrane lining the cavities of the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Membrane forming the outer layer of the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Partition between the right and left atria |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Partition between the right and left ventricles |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | Protective sac enclosing the heart composed of two layers with fluid between |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Layer closest to the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 | 
        |  | 
        
        | Term 
 | Definition 
 
        | Fluid-filled cavity between the pericardial layers |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Lower right or left chamber of the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Structures within the heart that open and close with the heartbeat to regulate the one-way flow of blood |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Heart valve between left ventricle and aorta |  | 
        |  | 
        
        | Term 
 
        | Mitral Valve Bicuspid Valve
 |  | Definition 
 
        | Heart valve between the left atrium and the left ventricle |  | 
        |  | 
        
        | Term 
 
        | Pulmonary Semilunar Valve |  | Definition 
 
        | Heart valve opening from the right ventricle to the pulmonary artery |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Valve between the right atrium and the right ventricle |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Valves located at intervals within the lining of the veins , especially in the legs, which constrict with muscle action to move the blood returning to the heart |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Vessels that carry blood from the heart to arterioles |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Large artery that is the main trunk of the arterial system branching from the left ventricle |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | small vessels that receive blood from the arteries |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Tiny vessels that join arterioles and venules |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Small vessels that gather blood from the capillaries into the veins |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | Vessels that carry blood to the heart from the venules |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | circulation of the blood throughout the body via arteries, arterioles, capillaries, venules and veins to deliver oxygen and nutrients to body tissues |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | circulation of blood through the coronary blood vessels to deliver oxygen and nutrients to the heart muscle tissue |  | 
        |  | 
        
        | Term 
 | Definition 
 
        | circulation of blood from the pulmonary artery through the vessels in the lungs and back to the heart via the pulmonary vein, providing for the exchange of gases. |  | 
        |  |