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.
Diaphragm is the strong wall of muscle that separates the chest cavity from the abdominal cavity. By moving downwards, it creates suction to draw in air and expand the lungs. Ribs are bones separating and protecting the chest cavity. They move to a limited degree, helping the lungs to expand and contract. Nerve and Muscles of the Respiratory System. When a spinal cord injury occurs, the lungs and the alveoli remain the same. However, just as the injury affects the nerves that control the muscles of the arms and legs, it also affects the nerves that activate the muscles used for breathing. There are four sets of muscles that control the respiratory system.