This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'Which of the following structures are not involved in development of diaphragm? \nSelect and explain. \nA. Somatic body wall, B. Septum transversum, C. Pleuroperitoneal membrane, D. Pleuropericardial membrane', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans: D. Pleuropericardial membranePleuropericardial membrane:Supradiaphragmatic structure.Not involved in formation of diaphragm.Development of Diaphragm:Septum transversum - Central tendon.Pleuroperitoneal membranes - Small intermediate muscular poione.Mesentery of esophagus - Crurae.Body wall - Peripheral muscular diaphragm.Cervical myotomes (muscular input).', 'role': 'assistant'}]