incurrent canal

incurrent canal

[in′kər·ənt kə′nal]
(invertebrate zoology)
A canal through which water enters a sponge.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Feeding in sponges has been well-documented, and with the exception of the two examples cited in the introduction, the Cladorhizidae and the Hexactinellida, particle uptake in sponges occurs at the choanocytes in the flagellated chambers or at the pinacoderm-lined incurrent canals. Food is transferred via food vacuoles from the choanocytes to amebocytes, which deliver the nutrients locally to other cells, and wastes are excreted via the excurrent canals (Kilian, 1952; Weissenfels, 1976; Willenz, 1980; Imsieke, 1994).
Most of the sponge's some, which lies beneath the sediment surface, is supported by numerous small incurrent canals and ostia (Figs.