Heart: How the Heart Works Index

Featured: How the Heart Works Main Article

The heart is a very important organ in the body. It is responsible for continuously pumping oxygen and nutrient-rich blood throughout your body to sustain life. It is a fist-sized muscle that beats (expands and contracts) 100,000 times per day, pumping a total of five or six quarts of blood each minute, or about 2,000 gallons per day.

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    Related Diseases & Conditions

    • Congestive Heart Failure (CHF) Congestive heart failure (CHF) refers to a condition in which the heart loses the ability to function properly. Heart disease,...learn more »
    • Low Blood Pressure (Hypotension) Low blood pressure, also referred to as hypotension, is blood pressure that is so low that it causes symptoms or signs due to the...learn more »
    • High Blood Pressure (Hypertension) High blood pressure is defined as a pressure of 140/90 mmHg or higher in the arteries. Genetic factors, high salt intake, and...learn more »
    • Pulmonary Edema Pulmonary edema (swelling or fluid in the lungs) can either be caused by cardiogenic causes (congestive heart failure, heart...learn more »
      In This Article
      Pulmonary Edema Article
      • Pulmonary edema facts
      • What is pulmonary edema?
      • What causes pulmonary edema?
      • What are the risk factors for pulmonary edema?
      • What are the symptoms of pulmonary edema?
      • When should I seek medical care for pulmonary edema?
      • How is pulmonary edema diagnosed?
      • What is the treatment for pulmonary edema?
      • What are the complications of pulmonary edema?
      • How can pulmonary edema be prevented?
    • Blood Clots Blood clots can occur in the venous and arterial vascular system. Blood clots can form in the heart, legs, arteries, veins,...learn more »
    • Peripheral Vascular Disease Peripheral vascular disease (PVD) refers to diseases of the blood vessels (arteries and veins) located outside the heart and...learn more »
      In This Article
      Peripheral Vascular Disease Article
      • Peripheral vascular disease (PVD) definition and facts
      • What is peripheral vascular disease (PVD)?
      • Are atherosclerosis and peripheral vascular disease related?
      • What are the signs and symptoms of peripheral artery disease (PVD)?
      • Who is at risk for peripheral artery disease (PVD)?
      • How does atherosclerosis cause disease?
      • What are the other causes of peripheral vascular diseases?
      • Is there a test to diagnose peripheral artery disease (PVD)?
      • What are the management and treatment guidelines for peripheral vascualr disease (PVD)?
      • Medications to treat peripheral vascular disease (PVD)
      • Angioplasty to treat peripheral vascular disease (PVD)
      • Surgery to treat peripheral vascular disease (PVD)
      • Which specialties of doctors treat peripheral vascular disease (PVD)?
      • What are potential complications of peripheral artery disease (PVD)?
      • How can I prevent from getting peripheral vascular disease (PVD)?

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