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Tissue Cell. 1970;2(2):225-31.

The fine structure of the excretory system in adult Nippostrongylus brasiliensis (Nematoda) and a suggested function for the 'excretory glands'.

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Department of Parasitology, Houghton Poultry Research Station, Huntingdon, England.


The ultrastructure of the excretory system, including the subventral glands, of the nematode Nippostrongylus brasiliensis has been described. The walls of the lateral excretory canals contain canaliculi which open into the lumen of the canal. It is suggested that these canals play a role in osmoregulation and excretion. The sub-ventral glands contain two types of secretory granule and contain non-specific esterase, cholinesterase and aminopeptidase. It is suggested that these glands are not excretory but play an important role in feeding.


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