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.
The Sternum. The sternum is the flat bone located in the middle of the chest. The sternum, together with the ribs, forms the ribcage that helps to protect the heart and the lungs, as well as major blood vessels. Ribs are connected to the sternum by cartilage. The sternum is composed of the following three parts: the manubrim, the gladiolus and the xiphoid process. In adults, the three parts of the sternum are often bone that is fused together. The manubrim is located at the top of the sternum.