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The enthesis (plural: entheses) is the connective tissue between tendon or ligament and bone. There are two types of entheses: ''Fibrous entheses'' and ''fibrocartilaginous entheses''. In a fibrous enthesis, the collagenous tendon or ligament directly attaches to the bone, whereas the fibrocartilaginous interface encompasses four transition zones: # Tendinous area displaying longitudinally oriented fibroblasts and a parallel arrangement of collagen fibres # Fibrocartilaginous region of variable thickness where the structure of the cells changes to chondrocytes # Abrupt transition from cartilaginous to calcified fibrocartilage—the so-called 'tidemark' or 'blue line' # Bone == Etymology == "Enthesis" is rooted in the Ancient Greek word, "ἔνθεσις" or "énthesis," meaning “putting in," or "insertion." This refers to the role of the enthesis as the site of attachment of bones with tendons or ligaments. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「enthesis」の詳細全文を読む スポンサード リンク
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