Often found in the retina, bipolar cells are crucial as they serve as both direct and indirect cell pathways. The specific location of the bipolar cells allow them to facilitate the passage of signals from where they start in the receptors to where they arrive at the amacrine and ganglion cells. Bipolar cells in the retina are also unusual in that they do not fire impulses like the other cells found within the nervous system. Rather, they pass the information by graded signal changes. Bipolar cells come in two varieties, having either an on-center or an off-center receptive field, each with a surround of the opposite sign. The off-center bipolar cells possess excitatory relationships with the synapses and are hyperpolarized by light. On-center bipolar cells have inhibitory synapses and therefore are excited by light and suppressed in the dark.
We choose the best for you, photos and description to them!
5800 Fulton Ave, Van Nuys, CA 91401, US