Central tendon of diaphragm is derived from-
Septum transversum
Pleuroperitoneal membrane
Dorsal mesogastrium
Ventral mesogastrium
Ans. is 'a' i.e., Septum transversum * Diaphragm develops from 4 structures derived from mesoderm which unite to form a sheet.1) Septum transversum Gives origin to sternal part and central tendinous region.2) Pleuroperitoneal membrane Dorsal paired portion.3) Dorsal mesentry of oesophagus Gives origin to crural part (Dorsal unpaired portion).4) Lateral body walls (from cervical myotome)Gives origin to peripheral costal portion of diaphragm.
Thorax