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对61具尸体喉进行解剖学研究。发现两侧环甲关节均为滑膜关节者30例，占49．2％；均为纤维连结者14例，占23．0％；一侧为滑膜关节，一侧为纤维连结者17例，占27.9％，纤维连结均居于左侧。在被动旋转和促使关节滑行的实验中，两种关节的旋转和滑动的范围类似。环甲关节的运动方式为：①环状软骨绕贯穿两侧关节的冠状轴作背板后仰和复位的转动；②环状软骨沿甲状软骨坏面长径绕环状软骨坏中心轴作滑行旋转运动。前者使声带紧张和松弛，后者能使两侧声带紧张度保持平衡。
Anatomy of 61 cadaveric larynx was performed. Found that both sides of the ring joint are synovial joint in 30 cases, accounting for 49.2%; all were fibrous in 14 cases, accounting for 23.0%; on one side of the synovial joint, on the side of the fibrin joint in 17 cases , Accounting for 27.9%, fiber links are living in the left. In the experiments of passive rotation and joint gliding, the range of rotation and sliding of the two joints were similar. The motion of the cricothyroid joint is as follows: (1) The cricoid cartilage rotates around the coronal axis of the joint on both sides for backwards and backwards rotation; (2) The cricoid cartilage rotates along the trochal cartilaginous long axis along the bad central axis of the cricoid cartilage. The former tension and relaxation of the vocal cords, which can make both sides of the vocal cords tension balance.