This chapter discusses the anatomical structures of the seventh cranial nerve (facial nerve), and the functions of its motor, sensory and autonomic components, and symptoms and syndromes caused by its impairment. The facial nerve contains four different groups of nerve fibers: motor, somatosensory, gustatory, and autonomic. The motor fibers innervate the frontal, orbicularis oculi and orbicularis oris muscles and platysma. If the facial nerve is affected by infectious or autoimmune inflammation, these muscles are paralyzed to various degrees (Bell palsy). Somatosensory fibers of the facial nerve transmit impulses arising from the skin of the inner aspect of earlobe and the external auditory meatus. Special nerve fibers for taste sense conduct impulses from the anterior two-thirds of tongue.