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Your heart muscle is made up of three layers of tissue: Pericardium – a thin, outer lining that protects and surrounds your heart.; Myocardium – a thick, muscular middle layer that contracts and relaxes to pump blood around of your heart.; Endocardium – a thin, inner layer that makes up the lining of the four chambers and the valves in your heart. ...
6 de jun. de 2014 · Do you want to learn more about the anatomy and function of the human heart? Watch this 3D medical animation that shows how the heart pumps blood throughout the body and what happens when it is ...
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A list of all emoji hearts, including every emoji and Unicode character that includes at least one heart. View each heart emoji for more details about cross-platform display or to copy and paste any heart emoji. Ahead of Valentine's Day 2021, Emojipedia conducted a data-driven deep dive into how the heart emojis are used. Grid. List View. 😍 ...
10 de mar. de 2015 · Endocardium: The innermost layer is thin and smooth. The heart is divided into four chambers: two atria and two ventricles. Blood is transported through the body via a complex network of veins and ...
Your heart is roughly the size of a fist and sits in the middle of your chest, slightly to the left. It’s the muscle at the centre of your circulation system. It pumps blood around your body as your heart beats. This blood sends oxygen and nutrients to all parts of your body, and carries away unwanted carbon dioxide and waste products.
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