Other flat bones in the human body are found in the pelvis and skull. Red blood cells are made in the marrow of flat bones. The thoracic cage (or rib cage) has the critical mission of protecting ...

The heart usually beats in an amazing harmonious synchronicity. A heart that beats 72 beats per minute, beats 4,320 times per hour, 103,680 times per day, 35 million times per year and 2 ½ billion ...