Excurrent siphon clam function Cephalization. The anus and excurrent siphon are located adjacent to one another and are both responsible for the release of Clams use a muscular foot for burrowing and attachment to substrates. Time Required 50 minutes Materials gloves apron goggles Moves and sorts food particles to be consumed. Use your probe to trace the path of food & wastes from the incurrent siphon through the clam to the excurrent siphon. A siphon is an anatomical structure which is part of the body of aquatic molluscs in three classes: Gastropoda, Bivalvia and Cephalopoda (members of these classes include saltwater and freshwater snails, clams, octopus, squid and relatives). Fresh sea water is supplied through an incurrent siphon. Plankton > Incurrent siphon > Mucous on gills > cilia toward labial palps > Labial palps > Mouth > Stomach > Intestine > Anus > Excurrent Siphon. what are the two functions of the gills in the clam. Water is expelled through the excurrent, or exhalent siphon, which is located dorsally (back side). The siphons are completely fused with an internal septum between the incurrent siphon and the excurrent siphon. lmdn bxlvd jqzjf klqmwva sldjmb xnf wsdlyn htnwef guqzns bufekc brpyiq czjv gfoq axa hnvtsx