Heart Anatomy 

       Approximately the size of your fist  

  Location  

  * Superior surface of diaphragm  

  * Left of the midline  

  * Anterior to the vertebral column, posterior to the sternum  

 Coverings of the Heart: 

  * Pericardium – a double-walled sac around the heart composed of:  

     1. A superficial fibrous pericardium 

     2. A deep two-layer serous pericardium 

            a. The parietal layer lines the internal  surface of the fibrous pericardium

            b. The visceral layer or epicardium lines the surface of the heart

             c. They are separated by the fluid-filled pericardial cavity