Recent Examples of tubule from the Web
Old baleen splits like fingernails, which reveals its structure: each curved plate is two flat keratin layers with rows of tubules, like miniature coils of tightly rolled luncheon meat, sandwiched between.
Another project replaces the giant carbon-containment vessels for natural-gas storage with an intestine of tiny plastic tubules, allowing natural-gas tanks to fit any arbitrary shape as well as reducing the risk of catastrophic rupture.
But for some reason, the tubules themselves have been lost to evolutionary history.
Cockroaches possess structures called Malpighian tubules, which pull wastes from their internal liquids; the liquids return to circulation, and the wastes are excreted in solid or semi-solid form, and can contain excess nitrogen.
A tubule connected to the stylet acts as a tow line, which the predatory cell uses to draw the prey cell close enough to strike—at which point the predatory cell actually unzips its own cell membrane to engulf the prey cell.
While the aphid excretory system isn’t widely studied, research so far suggests that the bugs have genes that seem similar to the ones in other insects’ Malpighian tubules.
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Origin and Etymology of tubule
First Known Use: 1677See Words from the same year
Learn More about tubule
Britannica.com: Encyclopedia article about tubule
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