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www.livescience.com/34655-human-heart.html

A heart attack is distinct from cardiac arrest, which is a sudden loss of heart function that usually occurs as a result of electrical disturbances of the heart rhythm. A heart attack can lead to ...

www.livestrong.com/article/164894-5-major-functions-of-the-cardiovascular-system

The heart functions as the pump that moves blood through the body. The arterial circulation delivers blood from the heart to the body, and the venous circulation carries it back to the heart. The cardiovascular system, also known as the circulatory system, includes the heart, arteries, veins, capillaries and blood. ... 5 Major Functions of the ...

www.ivyroses.com/HumanBody/Blood/Heart_Functions.php

The functions of the heart (together with the structure of the heart) are essential learning for students of courses in human biology, anatomy and physiology, and many holistic therapies. This page is part of a series about the vascular system.

www.reference.com/science/main-function-heart-9132cbbbbcb765c5

The main function of the heart is to pump blood to the lungs to be saturated with oxygen, and then pump it out into the body to supply the cells with oxygen. The heart, along with the blood vessels, make up the cardiovascular system. The heart is made up of four chambers: the upper two are atria, and the lower two are ventricles.

sciencing.com/5-important-functions-cardiovascular-system-during-exercise...

Thankfully, you don't have to concentrate on your heart and lungs to circulate the oxygen-rich blood for your workout; they just do it. An understanding of five functions of your cardiovascular system during exercise will ultimately improve your workout and help you reach your goals as you use your heart rate to your advantage.

www.quora.com/What-are-the-functions-of-the-heart

The human heart has four chambers: two upper chambers (the atria) and two lower ones (the ventricles). The right atrium and right ventricle together make up the "right heart," and the left atrium and left ventricle make up the "left heart." A wall...

www.nhsinform.scot/.../about-the-heart/understanding-how-your-heart-functions

These left and right sides of the heart are separated by a wall of muscle called the septum. Circulatory system. Your heart pumps blood around the body all the time - about five litres (eight pints) of it - and this is called circulation. Your heart, blood and blood vessels together make up your cardiovascular system (or heart and circulatory ...

quizlet.com/60758591/5-functions-of-heart-flash-cards

Start studying 5 Functions of Heart. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

www.webmd.com/heart/picture-of-the-heart

The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the ...

healthyeating.sfgate.com/functions-parts-heart-8873.html

Each part of the heart has a distinct function, but all the parts must work together seamlessly and simultaneously to keep blood moving through your body. Atria. The two hollow chambers at the top of the heart are called the atria. Individually, they are named the left atrium and the right atrium, based on their position in the heart.