Term Name:	septum transversum
Synonyms:	transverse septum
Definition:	A thick plate of mesodermal tissue that occupies the space between the thoracic cavity and yolk stalk in the early embryo, forming a transverse partition partially separating the coelomic cavity into thoracic and abdominal portions. It gives rise to the central tendon of the diaphragm[VHOG].
Ontology:	Cell Ontology [UBERON:0004161]