Kingdom of Hadhramaut (violet) in the 3rd century CE during the Sabaean-Himyarite war, it was eventually annexed by the Himyarite Kingdom.
Location of the Heart. Heart is located safely inside the chest cavity which looks like a cage bound by the ribs and breast bone (sternum). The chest cavity is also called as thoracic cavity and it lies between neck and abdomen.
Sternum pain is a sharp, usually unexpected pain in the chest area. The pain is sometimes associated with myocardial infarction (MI) or heart attack because of the similar sharp pain felt by the sufferer. Sternum pain is characterized by a radiating paineither in the inferior side or sides of the breast bone. In certain cases, the pain is accompanied with tenderness and swelling accompanied by a cracking sound from the sternum joints. Such a condition is referred to as popping sternum.