obsolete_chordotonal organ true MAT:0000209 ch James Malone Use http://purl.obolibrary.org/obo/UBERON_0001038 label: chordotonal organ An auditory and vibration detector in insects Mechanosensory organ, generally attached to the body wall and consisting of one or more scolopidia. FBbt:00005215 scolopophorous organ http://purl.obolibrary.org/obo/UBERON_0001038 Chordotonal organs are arthropod sensory structures consisting of special sensilla called the scolopidia, which are mechano-transducers and respond mainly to stretch or flexion. In insects, they consist of bundles of internal sensilla, each of which has a cap cell, an enveloping cell and one or more sense cells. The distal end of the organ is usually attached to the cuticle of the body wall, marked by a pit, a thickened disc or a nodule of chitin, and the base of the organ is connected with the hypodermis, often by a special ligament. true 2.38