it gets smaller in size forcing the air out of the lungs
The diaphragm separates the abdominal from the thoracic cavity.
The diaphragm contracts and moves up into the thoracic cavity.
In physiology superior means above. The cavity superior to the diaphragm is the thoracic cavity
When the Diaphragm contracts, it is pulled down, and is pulled back up when it relaxes.Also, when you inhale, it contracts. When you exhale, it relaxes.
The thoracic cavity is separated from the abdominal cavity by the diaphragm. This is a broad flat muscle. (muscular) diaphragmThe diaphragm is a muscle that separate the thoracic from the abdominal cavity. The pelvis is the lowest part of the abdominal cavity and it has no physical separation from it Diaphragm
When the diaphragm relaxes, the volume of the thoracic cavity decreases. The resultant decrease in thoracic cavity leads to an increase in the pressure. This increase in pressure leads to the exhalation of air out of the lungs into the atmosphere.
It increases.
The diaphragm divides the thoracic cavity from the abdominopelvic cavity.
The diaphragma isn't attached to the heart. It separates the thoracic cavity from the abdominal cavity. More.... The diaphragm separates the thoracic cavity (heart, lungs & ribs) 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.
The diaphragm.
The diaphragm is a large muscle that is located underneath the lungs. The diaphragm is important in respiration. During respiration, the diaphragm contracts, creating more space in the thoracic cavity for air to be breathed in.
The intercostals and the diaphragm.