Which are first order neuron in optic pathway?
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)
Bipolar cells
Ganglionic cells
Cells of lateral geniculate body
Astrocytes