Heart | Structure, Function, Diagram, Anatomy, & Facts ...
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 pump …
Heart disease - Symptoms and causes - Mayo Clinic
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 and on the artery …
Heart Disease: Symptoms, Causes & Treatment - Cleveland Clinic
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 heart diseases.
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? The term "heart …
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.
Heart Anatomy, Function, and Blood Circulation - WebMD
Aug 22, 2024 · Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.
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.