About 47,900 results
Open links in new tab
  1. Heart: Anatomy & Function - Cleveland Clinic

    Jan 26, 2024 · Electrical impulses make your heart beat, moving blood through these chambers. Your brain and nervous system direct your heart’s function. What is the function of the heart? …

  2. Heart disease - Symptoms and causes - Mayo Clinic

    Aug 13, 2024 · Coronary artery disease, also called CAD, is a condition that affects your heart. It is the most common heart disease in the United States. CAD happens when coronary arteries …

  3. 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 …

  4. About Heart Disease | Heart Disease | CDC

    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? …

  5. Heart | Structure, Function, Diagram, Anatomy, & Facts | Britannica

    Dec 6, 2025 · 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 …

  6. 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.

  7. CARDIAC Definition & Meaning - Merriam-Webster

    Jan 9, 2015 · The meaning of CARDIAC is of, relating to, situated near, or acting on the heart. How to use cardiac in a sentence.

  8. Cardiovascular system: Function, organs, conditions, and more

    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 …

  9. Heart Disease: Types, Causes, and Symptoms - WebMD

    Dec 10, 2024 · CAD is the most common heart problem and the biggest killer. With CAD, you get blockages in your coronary arteries — the vessels that supply blood to your heart. That can …

  10. 4 things to know about cardiac imaging - Novant Health

    3 days ago · Cardiac imaging gives cardiologists a safe, noninvasive way to see how the heart is functioning, helping identify the cause of symptoms, detect heart disease early and guide …