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Heart Attack

What is Heart Attack?

If you believe that you are having the symptoms of a heart attack, please call 911 immediately and seek medical attention.

The heart is a muscle like any other in the body. Arteries supply it with oxygen-rich blood so that it can contract and push blood to the rest of the body. When there isn't enough oxygen flow to a muscle, its function begins to suffer. Block the oxygen supply completely, and the muscle starts to die.

  • Heart muscle gets its blood supply from arteries that originate in the aorta just as it leaves the heart.
  • The coronary arteries run along the surface of the heart and supply oxygen-rich blood to the heart muscle.
  • The right coronary artery supplies the right ventricle of the heart and the inferior (lower) portion of the left ventricle.
  • The left anterior descending coronary artery supplies the majority of the left ventricle, while the circumflex artery supplies the back of the left ventricle.
  • The ventricles are the lower chambers of the heart; the right ventricle pumps blood to the lungs and left pumps it to the rest of the body.
Medically Reviewed by a Doctor on 3/31/2015

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The eMedicineHealth doctors ask about Heart Attack:

Heart attack - Symptoms

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Heart Attack - Prevention

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Heart Attack - Treatment

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Heart Attack in Women

Know the Symptoms

  1. Chest pain or discomfort
  2. Unusual upper body discomfort
  3. Shortness of breath
  4. Breaking out in a cold sweat
  5. Unusual or unexplained fatigue (tiredness)
  6. Light-headedness or sudden dizziness
  7. Nausea (feeling sick to the stomach)

A woman suffers a heart attack every 90 seconds in the United States. Yet according to a 2009 American Heart Association survey only half of women indicated they would call 9-1-1 if they thought they were having a heart attack and few were aware of the most common heart attack symptoms.

SOURCE:
WomensHealth.gov

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