The Molecular Regulation of Diaphragm Development

The diaphragm is defined as the domed muscle fiber septum that separates the chest and abdomen. The word "diaphragm" is Greek, meaning that the wall is closed or cut (Mosby's, 2008). This muscle fiber structure is very important, but if it is not the most important muscle in the body, its main function is unconscious breathing exercise. The embryonic origin of the membrane is a composite structure derived from several embryonic components.

Diaphragm: The diaphragm is the most important respiratory muscle. On the horizontal surface of the lower rib, it is from the front to the back, from the side to the side. After expiration, the diaphragm is shaped like a dome. The lungs are at the top of the dome and when filled with air the dome becomes flat. This flattening pushes up the ribs and pushes down the contents of the abdomen, so when the deep diaphragmatic breathing is done the abdomen will be pushed out. Respiration (respiration): a way to activate tissue. When the dancer inhales air, it absorbs oxygen and fuel to bring energy to muscles and important organs. It is impossible to move or control the body without oxygen. Breathing also helps dancers raise awareness about physical conditions such as muscle tension and relaxation.

Breathing exchanges gas between the outside air and the alveoli. Lung expansion is caused by two important muscles: the diaphragm (pronounced DIE-a-fram) and the intercostal muscle. The diaphragm is a domed muscle piece separating the lung, the chest and the abdomen. The intercostal muscle is between the ribs. The nerves from the brain send impulses to the diaphragm and intercostal muscles to promote contraction and relaxation. When the diaphragm contracts, it moves down. The dome becomes flat and the size of the chest increases. When the intercostal muscle contracts, the ribs move upwards and outwards. This will increase the size of the chest. Due to the contraction, the pressure of the diaphragm and intercostal muscle against ambient air lowers the pressure in the lungs. As a result, air will flow into the lungs during inhalation. The opposite happens during exhalation

There are muscle groups around the lungs that can inhale and exhale air from the lungs. The main muscle of human breathing is the diaphragm, part of the skeletal muscle forming the bottom of the chest. When the diaphragm contracts, it falls several inches into the abdominal cavity, expanding the space inside the chest, drawing air into the lungs. Relaxation of the diaphragm allows air to flow back into the lungs during expiration