Anastomoses between the laryngeal nerves. SLN = superior laryngeal nerve; ILN = internal laryngeal nerve; ELN = external laryngeal nerve; RN = recurrent nerve; 1 = Galen’s anastomosis; 2 = deep arytenoid plexus; 2’ = superficial arytenoid plexus; 3 = cricoid anastomosis; 4 = thyroarytenoid anastomosis; 5 = foramen thyroideum anastomosis; 6 = cricothyroid anastomosis. [With permission from Sanudo, JR, Maranillo E, Leon, X, Mirapeix RM, Orus C, Quer M. An Anatomical Study of Anastomoses Between the Laryngeal Nerves. The Laryngoscope. 1999; 109(6): 983-987]