" /> diaphragm - CISMeF





Preferred Label : diaphragm;

Uberon definition : A thin musculomebranous barrier that separates the abdominal and thoracic cavities. Often used for breathing control;

Uberon synonym : diaphragm of thorax; thoracic diaphragm; diaphragm muscle;

Uberon related term : phren; midriff;

Uberon Development note : originate from the cervical somites, likely C3-C5[PMID:23586979];

Uberon Function note : barrier between thoracic and abdominal cavities; stop gastric contents from refluxing into the oesophagus;

Uberon Homology note : The mammals are characterized by a diaphragm, which separates the thoracic portion of the body cavity from the abdominal region and assists in drawing air into the lungs and forcing it out. Modern reptiles lack a muscular diaphragm and it is reasonable to suppose that the diaphragm developed as a new device that made possible a large degree of oxygen intake for active animals. The change may have taken place during the transition from reptile to mammal (...).[well established][VHOG];

Uberon Taxon note : The existence of some membrane separating the pharynx from the stomach can be traced widely among the chordates. Thus amphioxus possesses an atrium by which water exits the pharynx, which has been argued (and disputed) to be homologous to structures in ascidians and hagfishes.[3];

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Keyword's position in hierarchy(ies) : arborescence

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A thin musculomebranous barrier that separates the abdominal and thoracic cavities. Often used for breathing control

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25/05/2025


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