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 bottom of the manubrium has a small facet which is continuous with a small facet at the top of the sternal body to accommodate the costal cartilage of the second rib. The first to seventh ribs are referred to as true ribs because it has its own costal cartilage which connects it to the sternum.