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: Ophthalmology
[{'content': 'The visual pathway consists of all of these except -a) Optic tractb) Geniculocalcarine tractc) Inferior colliculusd) Lateral geniculate bodye) Pretectal region \nSelect and explain. \nA. a, B. b, C. ac, D. ce', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The visual pathway starting from retina consists of optic nerve, optic chiasma, optic tracts, lateral geniculate bodies, optic radiations (geniculocalcarine pathway), the visual cortex, in that sequence.\nIt should also be kept in mind that some fibres from optic radiation go to -\n\n\nSuperior colliculus → involved in visual reflexes\nPretectal nucleus → involved in visual reflexes\nSuprachiasmatic nucleus concerned with circadian rhythms\n\n\nHowever, these structures are not part of visual pathway, which is mainly concerned with the vision.', 'role': 'assistant'}]