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您请求的操作仅限于组中的用户:==临床相关解剖==[[图片:跟腱。jpg|右|200px]]]跟腱是人体最大、最强的肌腱。腱具有抵抗大拉力的能力。它起源于[腓肠肌]和[比目鱼肌]的远端连接处并插入[[跟肌]的底部。典型的肌腱结构由薄的圆柱形细胞和细胞外基质组成。肌腱细胞(肌腱细胞和成肌腱细胞)负责合成细胞外基质的所有成分。在基质中，我们发现了一捆捆的I型胶原蛋白和弹性蛋白。这种i型胶原蛋白负责肌腱的力量。在胶原蛋白之间，有一种底物，它由蛋白聚糖和糖胺聚糖组成。VAN DER, Arnt, and Liselot VAN DE WALLE。"[http://lib.ugent.be/fulltxt/RUG01/001/459/185/RUG01-001459185_2011_0001_AC.pdf] heet excentrisch trainen van de kuitspieren。"] [[File:Tendon-structure.png|thumb|437x437px|Tendon structure]] The Achilles tendon is surrounded by paratenon which works as an elastic sleeve around the tendon which allows the tendon to move freely between surrounding tissue. The paratenon, membrane-like areolar structure consisting of loose connective tissue, is found around extraarticular tendons without a synovial sheath (eg the Achilles tendon). It supplies the tendon with blood from nearby vessels at several levelsRadiopedia Paratenon Available:https://radiopaedia.org/articles/paratenon (accessed 10.6.2022)Kiewiet NJ, Holthusen SM, Bohay DR, Anderson JG. [https://journals.sagepub.com/doi/abs/10.1177/1071100713477620 Gastrocnemius recession for chronic noninsertional Achilles tendinopathy]. Foot & Ankle International. 2013 Apr;34(4):481-5.
The blood supply throughout the length of the tendon is poor, as shown by the small numbers of blood vessels per cross-sectional area, especially the region 4-6cm above the calcaneus. Poor vascularity may characterize a slow healing rate following traumaAhmed IM, Lagopoulos M, McConnell P, Soames RW, Sefton GK. [https://onlinelibrary.wiley.com/doi/abs/10.1002/jor.1100160511 Blood supply of the Achilles tendon]. Journal of orthopaedic research. 1998 Sep;16(5):591-6.Carr AJ, Norris SH. [https://online.boneandjoint.org.uk/doi/abs/10.1302/0301-620x.71b1.2914976 The blood supply of the calcaneal tendon]. The Journal of bone and joint surgery. British volume. 1989 Jan;71(1):100-1..

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