The longer a stent is in place, the more cells from the artery's inner lining will have grown over and around the metal struts of the stent, like ivy on a trellis. This tissue helps hold the stent in place. One implanted several years ago should be firmly anchored. Even so, check with your doctor.
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. Heart lies slightly to the left in the chest cavity. [ 2 ].
The pericardium is the membrane that surrounds and protects the heart. It is composed of two layers separated by a narrow cavity. The inner layer is firmly attached to the heart wall and is known as the visceral layer or epicardium.osition and Shape of the Heart. The heart is located in the thoracic cavity in between the lungs, 60% of it lying to the left of the median plane. The heartâs lateral projection extends from rib 3 to 6. Most of the heartâs surface is covered by the lungs and in juveniles it is bordered cranially by the thymus.