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 …

May 15, 2024 · High blood pressure, high blood cholesterol, and smoking are key risk factors. 1 out of every 5 deaths in the United States are due to heart disease. What is heart disease? …

Aug 13, 2024 · Coronary artery disease is a common heart condition that affects the major blood vessels that supply the heart muscle. A buildup of fats, cholesterol and other substances in …

5 days ago · Heart Walk is the American Heart Association's premiere event for raising funds to help save lives from heart disease and stroke. Donate today to help end heart disease and …

Dec 6, 2025 · Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double …

Sep 19, 2025 · Heart disease can lead to a heart attack, heart failure, cardiac arrest, stroke and organ damage. Healthy habits, medicines and procedures can prevent or treat CAD and other …

Oct 29, 2024 · Cardiovascular disease is a group of conditions that affect your heart and blood vessels. It's sometimes also called heart disease. Conditions that affect your heart and blood …

The meaning of CARDIAC is of, relating to, situated near, or acting on the heart. How to use cardiac in a sentence.

Mar 20, 2025 · Heart disease is a general term that includes many types of heart problems. It's a type of cardiovascular disease, which means heart and blood vessel disease. Heart disease is …

May 22, 2025 · The cardiac cycle consists of two phases: systole (contraction) and diastole (relaxation). Some conditions that can affect the heart include heart attack, stroke, heart …