常見例句a bone supporting the caudal fin below the urostyle. 在尾桿骨之下支撐尾鰭的一個硬骨。postanal myomeres Myomeres posterior to the posterior margin of the anus; includes terminal myomere from which urostyle will form. 肛門后的肌分節(jié)肛門的后面的邊緣肌分節(jié)部分;包括將形成尾桿骨的末端肌分節(jié)。;internally, the major structural elements of the fin are an upturned urostyle that articulates with flattened bones that support the principial fin rays. 在內部,鰭的主要結構要素是支撐基本鰭條的平坦硬骨,連接一個朝上的尾桿骨。flexion Upward bending of the notochord tip in larvae of most teleost fishes (urostyle from postflexion stage) as part of the formation of the caudal complex. 彎曲在大多數(shù)硬骨魚仔魚(從后彎曲時期的尾骨)的脊索頂端的向上彎曲,是形成尾鰭復合體的一部份。os urostyle 尾桿 返回 urostyle