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': 'All of the following are types of epiphysis, EXCEPT: \nSelect and explain. \nA. Traction, B. Atavistic, C. Friction, D. Pressure', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Epiphysis: The end and tips of bones which ossify from secondary centres is known as epiphysis. There are 4 types of epiphysis:Pressure--head of humerous, condyles of tibia, lower end of radius.Traction--humerus tubercles, trachanters of femur, mastoid process.Atavistic--coracoids process of Scapula, Os trigonum.Aberrrant--Head of first metacarpal and base of other metacarpals.', 'role': 'assistant'}]