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.
These are flat polygonal bones that develop independently of the ribs and are first apparent at about 35 days gestation as a pair of mesenchymal bars lateral to the ventral midline in the thoracic region. Chest wall anatomy-rib cage. The manubrium forms first, followed by the sternal body and then the xiphoid process. The manubrium is located at the level of the T3 and T4 vertebral bodies and is the widest and thickest of the 3 sternal bones.