Thorax abnormalities

The thorax is composed of the thoracic spine, sternum, ribs, and intercostal tissue. There are chest wall and shoulder muscles on the outside and pleura on the inside. The upper thorax is a ring consisting of the upper edge of the sternum and the first rib. The lower mouth of the thorax is closed by the diaphragm. There are only a few holes in the thorax and abdomen, and some organs pass through the holes. The normal thoracic shape is roughly symmetrical on both sides, and the adult thoracic length is shorter than the left and right diameter. The ratio of the two is 1: 1.5. If it is found that the size of the thorax changes morphologically and loses its normality during the inspection, the thoracic symmetry or asymmetrical morphological change is an abnormality of the thorax. Due to the varying degree of deformation of the tissue structures that make up the thorax, various thoracic abnormalities are exhibited.