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Abstract Rods turn light into a signal that is transmitted across electrical synapses made with neighboring rods and chemical synapses made with horizontal and bipolar cells. Several currents traversing a rod's inner-segment membrane modify the signal and influence synaptic transmission. One, a voltage-activated calcium current, has two functions: 1) it makes an important contribution to controlling the membrane potential during darkness, and 2) it probably regulates the exocytosis of synaptic vesicles. When the two functions are explored, a paradox develops. This can be seen if I describe each function in turn.
Caudata, Cell Separation, Synaptic Transmission, Retina, Membrane Potentials, Synapses, Animals, Evoked Potentials, Visual, Calcium, Photoreceptor Cells, Photic Stimulation
Caudata, Cell Separation, Synaptic Transmission, Retina, Membrane Potentials, Synapses, Animals, Evoked Potentials, Visual, Calcium, Photoreceptor Cells, Photic Stimulation
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 1 | |
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