Sensillum scolopophorum see scolopidium

sensillum styloconicum A sense organ having a terminal sensory cone, usually in a pit in the cuticle, innervated by nerve fibers running to its tip; thought to be olfactory in function; sensilla styloconica; terminal sensory cone.

sensillum squamiformium (ARTHRO: Insecta) A sense organ with a scale-like external appearance with nerve fiber endings at its base; usually occurring on the wing veins and abdomen; sensory scales.

sensillum trichodeum A sense organ bearing an elongate seta, articulated with the body wall by a membranous socket so that it is free to move; a mechanoreceptor or less often as a chemoreceptor; trichoid sensillum; a tactile sen-sillum.

sensitization n. [L. sensus, sense] The process or state of sensitiveness or hypersusceptibility to specific substances in contact with the body tissues.

sensorium n.; pl. -riums, -ria [L. sensus, sense] The sensory apparatus, comprising sense organs and their nerve centers.

sensory a. [L. sensus, sense] Having communication with the sensorium.

sensory cell A unicellular receptor sensory cell, type I Bipolar nerve cells in or beneath the epidermis of the body wall, or the epithelium of the ectodermal parts of the alimentary canal and their distal processes are usually connected with specific ectodermal sense organs.

sensory cell, type II Bipolar or multipolar sense cell in the inner surface of the body and on the wall of the alimentary canal, their distal processes go to the epidermis, connective tissue, somatic muscles, splanchnic muscles or alimentary epithelium.

sensory neuron A neuron that acts as a receptor or receives excitation directly from a receptor that is not a neuron; an axonic connection usually to the central nervous system.

sensu proprio L. In the original sense; S.Pr.

sensu stricto L. In the strict sense; a limited sense; S.S.

senti n.pl.; sing. sentus [L. sentire, to feel] (ARTHRO: Insecta) In Hemiptera, unbranched, cone-like projections of the body wall with a few short, stout setae on the trunk of larvae of coccinellids.

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