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In anatomy, a joint capsule or articular capsule is an envelope surrounding a synovial joint.〔(eMedicine/Stedman Medical Dictionary Lookup! )〕 Each joint capsule has two parts: an outer fibrous layer or membrane, and an inner synovial layer or membrane. ==Membranes== Each capsule consists of two layers or membranes: * an outer (fibrous membrane, ''fibrous stratum'') composed of avascular white fibrous tissue * an inner (''synovial membrane'', ''synovial stratum'') which is a secreting layer On the inside of the capsule, articular cartilage covers the end surfaces of the bones that articulate within that joint. The outer layer is highly innervated by the same nerves which perforate through the adjacent muscles associated with the joint. 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「Joint capsule」の詳細全文を読む スポンサード リンク
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