notochord

notochord

A rudimentary internal skeleton made of stiff cartilage that runs lengthwise under the dorsal surface of the body of chordates. Generally, there is a single hollow nerve chord on top of the notochord. Among humans and the other vertebrates, the notochord is replaced by a more complex skeleton following the embryonic stage of development.

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Industry/Domain: Anthropology
Category: Physical anthropology
Company: Palomar College
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