輪状披裂関節（ りんじょうひれつかんせつ、英：cricoarytenoid joint ）
・「It (the joint) allows for rotation and gliding motion. This controls the abduction of the vocal cords.」（Wikipedia）
The cricoarytenoid joint is a joint connecting the cricoid cartilage and the arytenoid cartilage. It is a very shallow ball-and-socket joint. It allows for rotation and gliding motion. This controls the abduction and adduction of the vocal cords. 【Structure】
The cricoarytenoid joint is a very shallow ball-and-socket joint. 【Function】
The cricoarytenoid joint allows for rotation and gliding motion. The extent of rotation is significant, while the extent of gliding is limited. 【 語 句 】 ・cricoid cartilage：輪状軟骨 ・arytenoid cartilage：披裂軟骨 ・ball-and-socket joint：臼状関節 ・gliding motion：滑運動 ・abduction：外転 ・adduction：内転 ・vocal cords：声帯 ・intrinsic muscles of the larynx：
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