The heart

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How the Heart Works | NHLBI, NIH
The heart: Anatomy, how it works, and more
heart | Structure, Function, & Facts | Britannica
Watch The Heart | Prime Video
The Anatomy of the Heart, Its Structures, and Functions
Human Heart - Diagram and Anatomy of the Heart
How the Healthy Heart Works | American Heart Association
Heart Pictures, Diagram & Anatomy | Body Maps
Human Heart: Anatomy, Function & Facts | Live Science
Heart Disease: Types, Causes, and Symptoms
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The heart is an organ about the size of your fist that pumps blood through your body . It is made up of multiple layers of tissue . Your heart is at the center of your circulatory system . This system is a network of blood vessels, such as arteries, veins, and capillaries, that carries blood to and from all areas of your body .
The human heart is a finely-tuned instrument that serves the whole body . It is a muscular organ around the size of a closed fist, and it sits in the chest, slightly to the left of center . The heart . . .
The heart consists of several layers of a tough muscular wall, the myocardium . A thin layer of tissue, the pericardium, covers the outside, and another layer, the endocardium, lines the inside . The heart cavity is divided down the middle into a right and a left heart, which in turn are subdivided into two chambers .
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The heart is the organ that helps supply blood and oxygen to all parts of the body . It is divided by a partition (or septum) into two halves . The halves are, in turn, divided into four chambers . The heart is situated within the chest cavity and surrounded by a fluid-filled sac called the pericardium .
The heart is a muscular organ about the size of a closed fist that functions as the body's circulatory pump . It takes in deoxygenated blood through the veins and delivers it to the lungs for oxygenation before pumping it into the various arteries (which provide oxygen and nutrients to body tissues by transporting the blood throughout the body) .
The normal heart is a strong, hard-working pump made of muscle tissue . It's about the size of a person's fist . The heart has four chambers . The upper two chambers are the atria, and the lower two are the ventricles (Figure A) .
The heart is a mostly hollow, muscular organ composed of cardiac muscles and connective tissue that acts as a pump to distribute blood throughout the body's tissues .
The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes .
Continued . The causes of heart valve problems include infections such as rheumatic fever, congenital heart disease, high blood pressure, coronary artery disease, or as a result of a heart attack . . . .
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The heart