Ethmoid Artery Anatomy16545 viewsJeevan B. Ramakrishnan, MD, C. Scott Brown, MD Duke University Medical CenterFundamentalsOtolaryngologyMain TextProcedure OutlineTranscriptProcedure OutlineAnterior and Posterior Ethmoid ArteriesIdentify Frontal RecessIdentify Posterior Ethmoid ArteryExternal Approach