What are the most important functions of the human heart?

The human heart is an organ that pumps blood throughout the body via the circulatory system. ... Human Heart: Anatomy, Function & Facts. By Tanya Lewis, Staff ... The left main coronary artery, on one side of the aorta, branches into the left anterior descending artery and the left circumflex artery. read more

A human heart is roughly the size of a large fist. The heart weighs between about 10 to 12 ounces (280 to 340 grams) in men and 8 to 10 ounces (230 to 280 grams) in women. The heart beats about 100,000 times per day (about 3 billion beats in a lifetime). read more

The heart is made up of four chambers: the upper two are atria, and the lower two are ventricles. The two chambers on the right and the two on the left work together in pairs to move blood through the body. read more

The heart is one of the most important organs in the entire human body. It is really nothing more than a pump, composed of muscle which pumps blood throughout the body, beating approximately 72 times per minute of our lives. read more