Greater petrosal nerve
(重定向自Great superficial petrosal nerve)




The greater (superficial) petrosal nerve (also known as the large superficial petrosal nerve) is a nerve in the skull that branches from the facial nerve; it forms part of a chain of nerves that innervate the lacrimal gland. The fibres have synapses in the pterygopalatine ganglion (also known as the sphenopalatine ganglion).