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en.wikipedia.org/wiki/Heart

The heart is a muscular organ in humans and other animals, which pumps blood through the .... The cardiac skeleton also provides an important boundary in the heart's electrical conduction system .... The heart is the first functional organ to develop and starts to beat and pump blood at about three weeks into embryogenesis.

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

Mar 22, 2016 ... The human heart is an organ that pumps blood throughout the body via ... The left main coronary artery, on one side of the aorta, branches into ...

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

The functions of the heart (together with the structure of the heart) are essential learning for ... The main functions of the heart can be summarised as follows: ...

patient.info/health/the-heart-and-blood-vessels

The heart's main function is to pump blood around the body. Blood carries nutrients and waste products and is vital to life. One of the essential nutrients found in ...

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

comThe heart has four chambers: two atria and two ventricles. The right ... Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP - Emergency Medicine

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.

kidshealth.org/en/parents/heart.html

The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. It usually beats from 60 ...

www.quora.com/What-is-the-main-function-of-the-human-heart

Really? A google search would answer this. I'll do it for you… *slap* Google, there. Was that so hard? Maybe you'd like a specific link. *fabulous sparkles ...

www.yourheartvalve.com/heartbasics/pages/heartanatomy.aspx

Basic anatomy and function of the heart. The heart is a muscular organ that pumps blood to all the tissues in your body through a network of blood vessels.