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- Heart - Wikipedia
Cardiac muscle tissue has autorhythmicity, the unique ability to initiate a cardiac action potential at a fixed rate—spreading the impulse rapidly from cell to cell to trigger the contraction of the entire heart
- Heart | Structure, Function, Diagram, Anatomy, Facts | Britannica
heart, organ that serves as a pump to circulate the blood It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving chambers (atria) and a main pumping chamber (ventricle), as in mollusks
- Symptoms and causes - Mayo Clinic
Many forms of heart disease can be prevented or treated with healthy lifestyle choices Heart disease symptoms depend on the type of heart disease Coronary artery disease is a common heart condition that affects the major blood vessels that supply the heart muscle
- American Heart Association | To be a relentless force for a world of . . .
Help us create a healthier world free of heart disease and stroke Since the American Heart Association’s founding in 1924, deaths from cardiovascular diseases have been cut in half And yet, there are still so many lives to be saved
- Cardiac | definition of cardiac by Medical dictionary
1 pertaining to the heart 2 pertaining to the ostium cardiacum cardiac arrest sudden and often unexpected stoppage of effective heart action
- How the Heart Works - What the Heart Looks Like | NHLBI, NIH
Your heart is in the center of your chest, near your lungs It has four hollow chambers surrounded by muscle and other heart tissue The chambers are separated by heart valves, which make sure that the blood keeps flowing in the right direction Read more about heart valves and how they help blood flow through the heart Anatomy of the interior of the heart This image shows the four chambers
- About Heart Disease | Heart Disease | CDC
High blood pressure, high blood cholesterol, and smoking are key risk factors 1 out of every 5 deaths in the United States is due to heart disease What is heart disease? The term "heart disease" refers to several types of heart conditions The most common type of heart disease in the United States is coronary artery disease (CAD)
- The heart: Anatomy, how it works, and more - Medical News Today
This is called cardiac arrest If a person experiences cardiac arrest, they will be unable to speak or breathe, and they will have no heartbeat
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