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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 both nutrients and waste products and is vital to life. One of the essential nutrients ...

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.

www.thoughtco.com/atria-of-the-heart-anatomy-373232

May 19, 2017 ... The heart is an important organ of the circulatory system. It is divided into four chambers that are connected by heart valves. The upper two ...

www.sads.org.uk/heart-functions

How the heart functions. In order to understand why sudden death can happen, it helps to understand how the heart works. How the heart functions can be ...

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 surround ...

www.innerbody.com/image/card01.html

The heart is a muscular organ about the size of a closed fist that functions as the ... Blood pressure increases in the major arteries during ventricular systole and ...

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

The heart also plays a role in regulating blood volume and pressure via ANF ( atrial natriuretic ... Answered Apr 5. The functions of the heart are fairly straightforward and related to its primary function as a pump. The right chambers of the heart ...