Posterior geniculate artery: a surgeon's guide to the facial nerve.
Locating the facial nerve is an essential step in most mastoid procedures. A constantly occurring, easily identifiable, arterial bleeding point has been identified arising on the posterosuperior-lateral eminence of the posterior genu of the nerve, passing posterosuperiorly. The vessel permits exact sitting of the genu before the nerve is seen, and provides a timely warning of the nerve's presence.
Black
B
B
Royal Children's Hospital, Brisbane, Australia.
D002342:Carotid Artery, External / Q000033:anatomy & histology*; D005154:Facial Nerve / Q000033:anatomy & histology*; D006801:Humans; D008416:Mastoid / Q000601:surgery