Subradular organ

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The subradular organ is a sensory organ below the grinding mouthparts (radula) of some molluscs, specifically the chitons.[1] This organ is involved in chemoreception - that is, in judging the nature of food or the substratum. In this sense, it can be considered a 'smell' or 'taste' organ; food is sensed before each stroke of the radula.[1] Nerve cells from the subradular organ join into the buccal nerves.[2]


  1. ^ a b Boyle, P. R. (1975). "Fine structure of the subradular organ of Lepidochitona cinereus (L), (Mollusca, Polyplacophora)". Cell and Tissue Research. 162 (3). doi:10.1007/BF00220187.
  2. ^ Biserova, Natalia M. (2015). "11. Platyhelminthes: Neodermata". In Schmidt-Rhaesa, Andreas; Harzsch, Steffen; Purschke, Günter. Structure and Evolution of Invertebrate Nervous Systems. Oxford University Press. ISBN 9780191066214.