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pronephric tubule |
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pronephric tubule, any of the segmentally arranged excretory units of the pronephros in the early developing vertebrate embryo. The tubules open into the pronephric duct and communicate with the coelom through a nephrostoma. In humans and the higher vertebrates, the tubules are present only in vestigial form; in lower animals they are functional. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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