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': 'Coracoid process is a kind of epiphysis - \nSelect and explain. \nA. Atavistic, B. Pressure, C. Traction, D. Aberrant', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Atavistic epiphysis\n\nPhylogenetically an independent bone, which in man becomes fused to another bone\nExamples:\n\nCoracoid process of the scapula Posterior tubercle of talus Os trigonum\nTYPES OF EPIPHYSES:\n1. Pressure epiphysis\xa0\n\nArticular and takes part in weight transmission\nExamples: Head of femur Condyles of tibia Lower end of radius\n\n2. Traction epiphysis\n\nNon articular and does not take part in weight transmission\nProvide attachment to a tendon which exerts traction\nExamples: Trochanter of femur Tubercles of humerus Mastoid process\n\n3. Atavistic epiphysis\n\nPhylogenetically an independent bone, which in man becomes fused to another bone\xa0\nExamples:Coracoid process of the scapula Posterior tubercle of talus Os trigonum\n\n4. Aberrant epiphysis Not always present\n\nExamples: Head of 1 st metacarpal Base of other metacarpals', 'role': 'assistant'}]