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: Unknown
[{'content': 'In interphalangeal joint, capsule is absent in the - \nSelect and explain. \nA. Medial side, B. Dorsal side, C. Palmar side, D. Lateral side', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans- B Gray's anatomy 3rd edition: The interphalangeal joints of the hand are hinge joints that allow mainly flexion and extension. They are reinforced by medial and lateral collateral ligaments and palmar ligaments.", 'role': 'assistant'}]