Facial nerve

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The facial nerve, or cranial nerve, is the nerve used in facial expression. Constituting one of the brachial arch nerves, the so-called facial nerve is formed by what is officially called the facial nerve nucleus, whose function is exclusively motor, and the nervus intermedius, the sensory part of the facial nerve. This is the seventh cranial nerve. It has several features, which include motor control of facial muscles and the transport of taste information from the tongue to the brain.