Assertion: diaphragm's function | /r/HasProperty | important
Facets:
Source sentences:
text: 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, creating a negative pressure there, which draws air into the lungs.
text: The diaphragm is a sheet of muscle that extends across the bottom of the rib cage, separating the chest cavity from the abdominal cavity and performs an important function in breathing (respiration).
text: The diaphragm performs an important function in respiration.