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you bite into a fruit. it tastes bitter. it could be poisonous. you spit it out. what has happened in your nervous system to make you do this.? ​


associated with taste, are three nerves: the facial nerve (cranial nerve VII), which supplies fibers to the front two-thirds of the tongue; the glossopharyngeal nerve (cranial nerve IX), which supplies fibers to the back third of the tongue; and the vagus nerve (cranial nerve X), which provides fibers to the root of the tongue and the pharynx.