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This preview shows page 1 out of 1 page. 1) How do receptor potentials arise in photoreceptors? Get answer to your question and much more 2) By what pathway do nerve impulses triggered
by an object in the nasal half of the visualfield of the left eye reach the primary visual area of the cortex? Get answer to your question and much more End of preview. Want to read the
entire page? Upload your study docs or become a Course Hero member to access this document Tags hair cells, primary visual area ReferencesAbrahamson E.W., Wiesenfeld J.R. (1972). The structure, spectra and reactivity of visual pigments, in: “Handbook of sensory physiology”, v. 7/1, Dartnall, H.J.A., ed., p. 69–121., Springer-Verlag, Berlin - Heidelberg - New York. Google Scholar Applebury M.L., Zuckerman D.M., Lamola A.A., Jovin T.M.
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How do photoreceptors generate action potentials?
In the retina, however, photoreceptors do not exhibit action potentials; rather, light activation causes a graded change in membrane potential and a corresponding change in the rate of transmitter release onto postsynaptic neurons.
Do photoreceptors generate receptor potentials?
Photoreceptors do not fire action potentials; they respond to light changes with graded receptor potentials (depolarization or hyperpolarization). Despite this, the photoreceptors still release glutamate onto the bipolar cells.
Do rods generate receptor potentials?
In the retina of the eye, the receptor potential in the receptors, the rods and cones, causes a decreased release of a transmitter substance (a new stimulus, chemical this time) to the bipolar cells that causes them to generate a receptor potential.
How is action potential generated in the eye?
The Retina. The structure of the eye responsible for converting light waves into action potentials is the retina. The neural layer of the retina is composed of three main types of cells: the photoreceptors, the bipolar neurons and the ganglion cells.
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