Researchers at Cedars-Sinai Medical Center have found that patients with shortness of breath can have a higher risk of dying from cardiac disease than patients without symptoms, and even than patients with typical cardiac pain.
The sternum, commonly known as the breastbone, is a long, narrow flat bone that serves as the keystone of the rib cage and stabilizes the thoracic skeleton. Several muscles that move the arms, head, and neck have their origins on the sternum.
The manubrium is a section of the sternum or breastbone in the human chest. The horizontal collar bone connects to the manubrium at the sternum. Injuries to the manubrium may limit range of motion, and cause pain when exercising. View slideshow of images above.