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 thymus is a small, two-lobed organ that is located behind the sternum and between the lungs. Itâs part of the immune system. Occasionally lymphoma affects the thymus gland, and this can cause chest pain. Rarely, lymphoma affects lymph nodes located in the lower back. Swelling there may put pressure on the nerves of the spinal cord. However, there are many more likely causes of lower back pain than lymphoma.