This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Body Cavities and Diaphragm, Subject name: Anatomy
[{'content': 'Diaphragm develops from - \nSelect and explain. \nA. Ectoderm, B. Mesoderm, C. Endoderm, D. Neuroectoderm', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b'i.e., Mesoderm Development of diaphramo 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.", 'role': 'assistant'}]