The essential components of the human cardiovascular system are the heart, blood and blood vessels. It includes the pulmonary circulation, a “loop” through the lungs where blood is oxygenated; and the systemic circulation, a “loop” through the rest of the body to provide oxygenated blood.
Prospective cardiologists need to undertake a bachelor’s degree in a science or health-related field. This usually takes four years to complete but it will start paving the way towards your career. Complete premedical courses like chemistry, physics and biology, and prepare to study hard.Feb 15, 2017