Term: diaphragm
Origin: δια/dia(=across)+ φράγμα/fragma(=barrier) to indicate any partision between two cavities by a membrane
Coined : 17th cen
Definition:
1)The muscle that separates the thorax from the abdomen consisting the main muscle of respiration. Contraction of the diaphragm muscle expands the lungs during inspiration lowering its internal pressure.
