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Heart: Anatomy Function - Cleveland Clinic As the main organ of your circulatory system, your heart keeps you alive It pumps blood throughout your body, bringing oxygen to your cells and tissues Since your heart plays such a vital role, it’s important to take care of it Conditions that affect your heart are very common, but you have the power to make changes for a stronger heart
Heart - Wikipedia The heart is a muscular organ found in humans and other animals This organ pumps blood through the blood vessels [1] Heart and blood vessels together make the circulatory system [2] The pumped blood carries oxygen and nutrients to the tissue, while carrying metabolic waste such as carbon dioxide to the lungs [3]
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
The Anatomy of the Heart, Its Structures, and Functions - ThoughtCo The heart has four chambers: two upper atria and two lower ventricles The heart wall consists of three layers: epicardium, myocardium, and endocardium Heart valves ensure blood flows in one direction, preventing backflow during pump cycles