Online Dictionary of Invertebrate Zoology: Complete Work - Best Text

820Maggenti and Gardnerplates.sensillum rhinarium see rhinariumsensillum scolopophorum see scolopidiumsensillum styloconicum A sense organ having a terminalsensory cone, usually in a pit in the cuticle, innervated bynerve fibers running to its tip; thought to be olfactory infunction; sensilla styloconica; terminal sensory cone.sensillum squamiformium (ARTHRO: Insecta) A sense organwith a scale-like external appearance with nerve fiber endingsat its base; usually occurring on the wing veins andabdomen; sensory scales.sensillum trichodeum A sense organ bearing an elongateseta, articulated with the body wall by a membranoussocket so that it is free to move; a mechanoreceptor or lessoften as a chemoreceptor; trichoid sensillum; a tactile sensillum.sensitization n. [L. sensus, sense] The process or state ofsensitiveness or hypersusceptibility to specific substancesin contact with the body tissues.sensorium n.; pl. -riums, -ria [L. sensus, sense] The sensoryapparatus, comprising sense organs and their nerve centers.sensory a. [L. sensus, sense] Having communication with thesensorium.sensory cell A unicellular receptorsensory cell, type I Bipolar nerve cells in or beneath the epidermisof the body wall, or the epithelium of the ectodermalparts of the alimentary canal and their distal processesare usually connected with specific ectodermal sense organs.sensory cell, type II Bipolar or multipolar sense cell in theinner surface of the body and on the wall of the alimentarycanal, their distal processes go to the epidermis, connectivetissue, somatic muscles, splanchnic muscles or alimentaryepithelium.sensory neuron A neuron that acts as a receptor or receivesexcitation directly from a receptor that is not a neuron; an