英语词汇“anal sphincter”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	anal sphincter
释义	anal sphincter noun : either of two sphincters controlling the closing of the vertebrate anus a. : an outer sphincter of striated muscle extending from the coccyx to the central tendinous part of the perineum and surrounding the anus immediately beneath the skin — called also external anal sphincter b. : an inner sphincter formed by thickening of the circular smooth muscle of the rectum — called also internal anal sphincter
随便看	holometabolous holometaboly holomictic holomorphic holomorphosis holomyarial holomyarian holonephros holoparasite holophotal holophote holophrase holophrasis holophrasm holophrastic holophytic holoplankton holoplanktonic holoplast holopneustic holoptic holoptychian holoptychiid holoptychiidae holoptychius

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