In the visual pathway providing sensory action potentials to the brain,the first cells which are capable of initiating action potentials are:

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The ganglion cells are the first cells in the visual pathway that are capable of initiating action potentials. These cells receive input from bipolar cells and integrate signals from multiple photoreceptor cells, before transmitting the action potentials to the brain via the optic nerve. Cone and rod cells only respond to light and do not generate action potentials. Lateral geniculate cells are located in the thalamus and receive input from the ganglion cells. Bipolar cells are located between the photoreceptor cells and ganglion cells, and serve as intermediaries for signal transmission.

In the Visual Pathway Providing Sensory Action Potentials to the Brain,the