The taste pathway from the vl subnucleus to the lpa through the mt may be a neural substrate for taste aversion learning the switching may result from a plastic change involving long term potentiation and depression due to a convergence of the taste input of saccharin and general visceral information of lici injection. Central neural mechanisms of taste supplement 3 handbook of physiology the nervous system sensory processes ralph norgren the rockefeller university new york city search for more papers by this author ralph norgren the rockefeller university new york city. The sense of taste gradually declines with aging with bitter taste most affected neural circuits that mediate taste in primates include cranial nerves vii ix and x the solitary nucleus in the . The taste receptor cells within a bud are arranged such that their tips form a small taste pore and through this pore extend microvilli from the taste cells the microvilli of the taste cells bear taste receptors interwoven among the taste cells in a taste bud is a network of dendrites of sensory nerves called taste nerves when taste cells . The taste cell moves toward the centre of the taste bud at a slow rate of about 006 fi h 10 a min or 14 fi day in this manner the taste fibre at the rim of the taste bud would always innervate young taste cells in contrast to the fibre at the centre of the neural mechanism of taste 141 bud which would innervate the older cells
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