Porocyte
Porocytes are tubular cells which make up the pores of a sponge known as ostia.
Description
Covering the sponge is a layer of cells known as the pinacoderm, which is composed of pinacocytes. In a sponge, pinacocytes are a thin, elastic layer which keeps water out. Between the pinacocytes, there are the porocytes that allow water into the sponge. Myocytes are small muscular cells that open and close the porocytes. Once through the pores, water travels down canals. The opening to a porocyte is a pore known as an ostium.
See also
This article is issued from Wikipedia - version of the Saturday, October 17, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.