The heart is the strongest muscle in the human body and the most important organ as it pumps blood through the entire body through its four chambers and blood vessels. Located in the center of the chest, the heart beats an average of 60-100 times per minute, pumping blood through valves that prevent backflow and ensure blood flows in the proper direction through the heart's entrances and exits to circulate oxygen and nutrients to the entire body.

1. By: Tiffany Warren