Diaphragm develops from all of the following structures, except?: (A) Septum transversum, (B) Pleuroperitoneal membrane, (C) Cervical myotomes, (D) Dorsal mesocardium
Answer is D. The diaphragm is, therefore, formed from the following components Pleuroperitoneal membranes forms posterior pa of central tendon. Dorsal mesentry of esophagus forms crus of diaphragm. Body wall forms peripheral pa of diaphragm. cervical myotomes forms muscles of diaphragm.