棘刺

雄性寄生扁形动物——Lethacotyle vera的交接刺

棘刺(英語:spine),简称[1],是指动物身上硬质针状的解剖结构,在脊椎动物无脊椎动物身上均有出现。大部分动物的棘刺类似于特化的毛发,棘刺中间部分的材质类似海绵,外表则由厚重的角蛋白包覆,末端常有尖角。

参考资料

  1. ^ Spine - 棘. 国家教育研究院. [2021-09-24]. (原始内容存档于2021-09-24). 

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