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': 'Which are first order neuron in optic pathway? \nSelect and explain. \nA. Bipolar cells, B. Ganglionic cells, C. Cells of lateral geniculate body, D. Astrocytes', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Bipolar cells In visualpathway Sensory organs -Photoreceptors (Rods & cones) Neurons of first rder -3 Axon of bipolar cells (in Retina) Neurons of second rder - Axons of ganglionic cell (Retina i.e., Optic disc,Optic nerve, Optic chiasma, optic tracts) Neurons of third order - Axons from nerve cells in lateral geniculate body (optic adiation)", 'role': 'assistant'}]