Wall Mounted Units. These wall mount network cabinets and sub-d boxes utilize the extra wall space found in corporate data centers. Choose from our double swing sub-D boxes, wall mounted swing racks, sub-distribution wall boxes, local distribution frame cabinets, or wall mounted unit frames. Accepts all 19 rack mount equipment.
The diaphragm separates the thoracic cavity containing the heart and lungs, from the abdominal cavity and performs an important function in respiration: as the diaphragm contracts, the volume of the thoracic cavity increases and air is drawn into the lungs.tructure [edit]. The diaphragm is a dome-shaped structure of muscle and fibrous tissue that separates the thoracic cavity from the abdomen. The dome curves upwards. The superior surface of the dome forms the floor of the thoracic cavity, and the inferior surface the roof of the abdominal cavity.
In humans and other mammals, the anatomical features of the respiratory system include trachea, bronchi, bronchioles, lungs, and diaphragm. Molecules of oxygen and carbon dioxide are passively exchanged, by diffusion, between the gaseous external environment and the blood.This exchange process occurs in the alveoli (air sacs) in the lungs. In fish and many invertebrates, respiration takes place through the gills.he major function of the respiratory system is gas exchange between the external environment and an organism's circulatory system. In humans and other mammals, this exchange facilitates oxygenation of the blood with a concomitant removal of carbon dioxide and other gaseous metabolic wastes from the circulation.