“…Although some authors use ''rotation'' to describe a movement around the longitudinal CA joint axis, 1,2,[9][10][11] others use the term to denote a movement around an axis that runs perpendicular to the joint surface. 3,6,7,12 To complicate matters even further, Ardran and Kemp 3 use the term ''tilting,'' whereas Von Leden and Moore 2 speak of ''pivoting'' when they talk about a rotation around an axis that runs perpendicular to the joint surface. Following the proposition of Sellars and Sellars, 13 we use three terms to describe the arytenoid cartilage movement.…”