Nephrostome
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![](http://upload.wikimedia.org/wikipedia/commons/thumb/e/ea/Annelid_redone_w_white_background.svg/220px-Annelid_redone_w_white_background.svg.png)
A diagram of the inner organs of an annelid worm showing the metanephridia and both nephrostomes in one of the animal's segments
The nephrostome is the funnel-like component of a metanephridium. It is always oriented towards the coelom. The nephrostome is covered from the inside with cilia, which push the water, metabolic wastes, unnecessary hormones and other substances into the metanephridium.
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Categories:
- Annelid anatomy
- Annelid stubs
- Animal anatomy stubs