The second law of thermodynamics says that the entropy of the universe (or any isolated system therein) is increasing; i.e., the energy of the universe is becoming more uniformly distributed. It is often noted that the second law indicates that nature tends to go from order to disorder, from complexity to simplicity.
Small-bore catheters and Heimlich valves have been successfully used in. the treatment of pneumothoraces in several studies.4,5 The thoracic vent. (see Figure 1) is a minimally invasive device for the treatment of. pneumothorax. It consists of a polyurethane catheter connected to a. plastic chamber containing a one-way valve.
Summary Information: Thoracic Cavity. Thoracic Cavity: The thoracic cavity is an enclosed chamber located within the ventral cavity that contains some of the body's organs and structures. The thoracic cavity includes the pleural cavity, thoracic aorta, pulmonary vein, pulmonary artery, vena cavas, heart, and lungs.escriptions of Thoracic Cavity. Thoracic Cavity: the cavity in the vertebrate body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart. Source: WordNet 2.1. Thoracic Cavity: The region of the thorax that includes the PLEURAL CAVITY and MEDIASTINUM.