Student will label the major internal and external structures of the heart, describe the major functions of the cardiovascular system. Identify the five types of blood vessels, label the electrical conduction of the heart and obtain a standard EKG rhythm strip. Describe and identify ECG characteristics of Sinus Rhythms, Atrial Rhythms, Junctional Rhythms, Ventricular Rhythms, Atrioventricular, AV Blocks, different components of Pacemaker Rhythm.