AS：肛门括约肌

肛门括约肌（Anal Sphincter，常简写为AS）是人体重要的生理结构，主要用于控制肛门开闭以维持排便功能。这一术语常见于医学与生理学领域，缩写形式AS便于专业人员在书写记录和学术交流时快速、准确地表达。

Anal sphincter laceration was the primary outcome, defined as third-and fourth-degree perineal lacerations.
肛门括约肌(AS)撕裂伤为初始结果资料，其被定义为第三和第四度会阴裂伤。
Analysis of external anal sphincter electromyography and autonomic nervous dysfunction in patients with Parkinson's disease and multiple system atrophy
帕金森病和多系统萎缩患者的肛门括约肌(AS)肌电图与自主神经功能障碍分析
As the energy center, transcutaneous power supply is the core of artificial anal sphincter.
经皮能量传输的无线供能技术为人工肛门括约肌(AS)系统提供能量，是系统的核心部分。
Pain caused by venous swelling at or inside the anal sphincter.
肛门内外因静脉肿胀而疼痛。
The results show that the method can be release within the anal sphincter to ease spastic sphincter to improve the ulcer anal fissure side of the insufficiency, anal fissure to promote healing.
结果表明，该法可松解肛门内括约肌缓解括约肌痉挛，改善肛裂溃疡面的供血不足，促进肛裂的愈合。

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