Nerve signals that help the parotid gland produce saliva start in the glossopharyngeal nerve. They pass through a small pathway (the tympanic and lesser petrosal nerves) until they reach a tiny ...

the chorda tympani nerve (from the front of the tongue), the glossopharyngeal nerve (from the back of the tongue) and the vagus nerve (from the throat area and palate). In addition, the trigeminal ...