Photoreceptors of the retina, rods and cones,______1______ light or the absence of light. Photoreceptors project to retinal bipolar cells which project to retinal____2_____ cells. The axons of these cells form the optic nerve, optic_____3_____, and optic tract, terminating in the lateral geniculate nucleus of the thalamus, where the modulation of 4 occurs. The axons of these thalamic neurons form the optic radiation terminating in the 5 of the occipital cortex, where the 6, location, motion, and color of lines is encoded. These neurons project to secondary visual cortex where illusory contours are encoded. Secondary visual cortex neurons project to tertiary visual cortex where the pathway branches in two directions. In the first branch, tertiary visual cortex neurons with object identity information project to 17 in occipital cortex, where patterns are encoded. These neurons then project to the inferior temporal cortex for the perception of objects. A subset of neurons in the fusiform gyrus of the inferior temporal cortex allows for the perception of 8. In the second branch, tertiary visual cortex neurons with spatial information project to medial temporal cortex for the perception of motion. These neurons project to 9, where visual information is combined with somatosensory information for the cognition of_10_