Diaphragm
Description
The thin layer of muscle that separates the chest cavity containing the lungs and heart from the abdominal cavity containing the intestines and digestive organs. It extends across the bottom of the rib cage.
Function
It contracts to promote inhalation, flattening downward and permitting the lungs to expand. It relaxes to promote exhalation, rising to its dome-shaped position and compressing the lungs. The diaphragm is also involved in non-respiratory functions, helping to expel vomit, feces, and urine from the body by increasing intra-abdominal pressure, and preventing acid reflux by exerting pressure on the esophagus. The diaphragm also enhances blood (venous) and lymph return to the heart. In a way, it is considered the venous system “heart” or pump.
Color
White/Red.
Shape
A thin wide elastic membrane shaped like a beanie.
Direction
Above the waist.
Location
In the abdomen and chest separating the chest from the abdomen.
Delimitation
The diaphragm is near the liver, the stomach, the spleen, the adrenal glands, and kidneys.
Meditation on the Diaphram