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| the colored portion of the eye that contains a circular opening, the pupil, in its center |
| the flattened region on either side of the forehead in humans |
glossopharyngeal nerve n.
Either of a pair of nerves that emerge from the medulla, supply sensation to the pharynx and the back third of tongue, and carry motor fibers to the stylopharyngeal muscle and parasympathetic fibers to the otic ganglion. Also called ninth cranial nerve.