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Berenice Cardenas Per.1 Cardiovascular System - Coggle Diagram

- - - - Blood passes through the right atrium through the tricuspid valve and into the right ventricle
        
        From the right ventricle blood passes through the pulmonary semilunar valve into the pulmonary artery
        
        Blood enters the lungs and collects oxygen
        
        Blood from the lungs returns to the heart via the pulmonary vein
        
        The pulmonary vein directs blood into the left atrium
        
        Oxygenated blood moves from the left atrium through the bicuspid valve and into the left ventricle
        
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- - - - Tunica Media- thickest layer, composed of smooth muscle
        
        Tunica Externa- outermost connective tissue layer, relatively thin, attaches the artery to surrounding tissues
  - - - They handle exchanges of gasses, nutrients, hormones, etc