urostyle

urostyle

1. ;internally, the major structural elements of the fin are an upturned urostyle that articulates with flattened bones that support the principial fin rays.

在内部，鳍的主要结构要素是支撑基本鳍条的平坦硬骨，连接一个朝上的尾杆骨。

2. a bone supporting the caudal fin below the urostyle.

在尾杆骨之下支撑尾鳍的一个硬骨。

3. os urostyle

尾杆

4. 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.

弯曲在大多数硬骨鱼仔鱼(从后弯曲时期的尾骨)的脊索顶端的向上弯曲，是形成尾鳍复合体的一部份。

5. postanal myomeres Myomeres posterior to the posterior margin of the anus; includes terminal myomere from which urostyle will form.

肛门后的肌分节肛门的后面的边缘肌分节部分；包括将形成尾杆骨的末端肌分节。