Chest Area Back Lower

The posterior lower chest area (regio thoracis posterior inferior) is the part of the chest located below the posterior border of the middle third of the chest. It is limited above by the diaphragm, below by a line passing through the fifth intercostal space, and laterally by the lateral borders of the levator ribs muscles.
The posterior inferior chest region includes the posterior inferior portion of the lung, posterior surface of the heart, pericardium, aorta, esophagus, trachea, and lower esophagus.
This area contains vital organs and therefore requires special attention during operations and other medical procedures.



The posterior inferior chest region refers to the posterior part of the chest and includes the skin, subcutaneous tissue, fascia, muscles and internal organs. It borders the back, anterior upper and anterior lower chest. This area is important to human health as it is an important part of the breast anatomy and plays an important role in the functioning of the lungs and other organs.

The skin of the posterior chest has structural features that provide its protection and support for internal organs. The skin is composed of several layers, including the dermis, epidermis, and subcutaneous adipose tissue. These layers provide elasticity and smoothness to the skin and also serve as a barrier from external influences. Under the skin there are superficial and deep fascia. Superficial fascia is a fibrous structure that serves to support muscles and protect internal organs from damage. Deep fascia includes panarchic fascia and interfascial spaces, which play an important role in the process of blood circulation and lymph flow.

The posterior thoracic region contains muscles such as the paraspinal muscles, serratus muscles and trapezius muscle. They provide support and movement of the thoracic