Last Updated
：2025/11/20
notochord
Noun
Japanese Meaning
脊索――最も原始的な脊椎にあたる柔軟な棒状の支持構造。最下位の脊索動物において体の主な支持体として機能する。 / 脊索――脊椎動物の胚に一時的に見られる構造で、後に脊椎（背骨）へと発達する原基となる。
（ plural ）
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A flexible rodlike structure that forms the main support of the body in the lowest chordates; a primitive spine / A similar structure found in the embryos of vertebrates from which the spine develops
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notochord
During embryonic development, the notochord provides structural support and signals surrounding tissues to pattern the vertebrate body plan.
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During embryonic development, the notochord provides structural support and signals surrounding tissues to pattern the vertebrate body plan.
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