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Heart | Structure, Function, Diagram, Anatomy, & Facts ...
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 that is the center of the circulatory system in humans, other mammals, and birds.
Heart - Wikipedia
In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest, called the mediastinum. [4]
Heart: Anatomy & Function - Cleveland Clinic
Your heart is the main organ of your cardiovascular system, a network of blood vessels that pumps blood throughout your body.
Heart Symbols (Copy and Paste) ♥ ♡ – Unicode Hearts & Meanings
Heart symbols are Unicode characters and emojis that people commonly use to express love, affection, support, and emotion in digital text. This page includes heart keyboard text symbols, heart emoticons, and heart emojis that you can copy and paste into any application. In everyday writing you may see hearts like ♥, ♡, , and 💜 used to add a warm tone or highlight caring intent.
Heart Anatomy, Function, and Blood Circulation - WebMD
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.
How the Heart Works - What the Heart Looks Like | NHLBI, NIH
This image shows the four chambers of the heart and the direction that blood flows through the heart. Oxygen-poor blood, shown in blue-purple, flows into the heart and is pumped out to the lungs.
American Heart Association | To be a relentless force for a ...
Learn more about the American Heart Association's efforts to reduce death caused by heart disease and stroke. Also learn about cardiovascular conditions, ECC and CPR, donating, heart disease information for healthcare professionals, caregivers, and educators and healthy living.
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