1. Cardiovascular system consists of: Answer the heart and blood vessels 2. Blood vessels are arranged in two continuous loops:: Answer pulmonary circulationand systemic circulation 3. Precordium: Answer area on anterior chest overlying heart and great vessels 4. Mediastinum: Answer middle 1/3 of the thoracic cage where heart and great vessels arelocated 5. Great vessels: Answer major arteries and veins connected to heart 6. Heart: Answer extends from 2nd to 5th intercostal space and from right border ofsternumto left mid-clavicular line 7. Pericardium: Answer tough, fibrous, double walled sac that surrounds heart in betweenthe 2 layers are a few mL of serous pericardial fluid to allow friction- free movementof heart muscle 8. Myocardium: Answer muscular wall of heart that does the pumping