体节

体节(somite or metamere)为动物胚胎中身体分节发育的单位。

体节
Transverse section of half of a chick embryo of forty-five hours' incubation. The dorsal (back) surface of the embryo is towards the top of this page, while the ventral (front) surface is towards the bottom.
Dorsum of human embryo, 2.11 mm in length. (The older term primitive segments is used to identify the somites.)
基本
卡内基分期9
Days20[1]
发育自轴旁中胚层
发育为皮层肌层生骨节
标识字符
拉丁文somitus
MeSHD019170
TEE5.0.2.2.2.0.3
FMAFMA:85522
格雷氏p.52
解剖学术语

节肢动物

在原始甲壳类中,体节被认为是身体构型的一部分。在现今甲壳类身上,某些体节可能已经融合。

参见

参考文献

  1. . [2007-10-13]. (原始内容存档于2017-07-12).

外部链接

  • Template:EmbryologyUNSW
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