Tagma (biology)

（重定向自Tagmatization）

The tagmata of a trilobite: cephalon, thorax and pygidium

Tagmata of a dragonfly as an example of a typical insect

Tagmata and major appendages of a spider

In biology a tagma (Greek: τάγμα, plural tagmata - τάγματα) is a specialized grouping of multiple segments or metameres into a coherently functional morphological unit. Familiar examples are the head, the thorax, and the abdomen of insects. The metameres within a tagma may be either fused (such as in the head of an insect or a mammal) or so jointed as to be independently moveable (such as in the abdomen of most insects).

单词	Tagmatization
释义	Tagmatization 英语百科 Tagma (biology) （重定向自Tagmatization） In biology a tagma (Greek: τάγμα, plural tagmata - τάγματα) is a specialized grouping of multiple segments or metameres into a coherently functional morphological unit. Familiar examples are the head, the thorax, and the abdomen of insects. The metameres within a tagma may be either fused (such as in the head of an insect or a mammal) or so jointed as to be independently moveable (such as in the abdomen of most insects).
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