Heart Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body. It also works with other body systems to control your heart rate and blood pressure. Your family history, personal health history and lifestyle all affect how well your heart works.
Witheach beat, your heart sends blood throughout the body. The pulmonary loop, or the right side of the heart, is tasked with collecting the oxygen-poor blood and moving it to the lungs for cleaning and reoxygenating. Once reoxygenated, the systemic loop, or the left side of the heart, pumps the high-oxygen blood to the rest of your organs
Heartattack signs look different for everyone, although there are a few common ones to watch for. Neck, jaw, arm, and back pain: Pain radiating to your jaw, back, neck, or arms may signal a heart
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