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: Surgery
[{'content': 'Which of he following is not a fibrous joint? \nSelect and explain. \nA. Sutures of the skull, B. First costochondral joint, C. Tooth socket, D. Inferior tibiofibular joints', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Sutures of the skull, tooth socket and inferior tibiofibular joints are examples of fibrous joints. In fibrous joints bones are joined by fibrous tissue without any cavity. 3 types of fibrous joints are sutures, syndesmoses and gomphoses. Sutures occur between bones of the skull. In syndesmoses bones are connected by a ligament or band of fibrous tissue eg: inferior tibiofibular joint. Gomphoses is a peg in socket fibrous joint eg: aiculation of a tooth with its bony socket.', 'role': 'assistant'}]