Functional specialization of the scoloparia of the femoral chordotonal organ in stick insects

Kittmann R, Schmitz J (1992)
Journal of Experimental Biology 173: 91-108.

Journal Article | Published | English

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Abstract
The femoral chordotonal organ (fCO), one of the largest proprioceptive sense organs in the leg of the stick insect, is important for the control of the femur-tibia joint during standing and walking. It consists of a ventral scoloparium with about 80 sensory cells and a dorsal scoloparium with about 420 sensory cells. The present study examines the function of these scoloparia in the femur-tibia control loop. Both scoloparia were stimulated independently and the responses in the extensor tibiae motoneurones were recorded extra- and intracellularly. The ventral scoloparium, which is the smaller of the two, functions as the transducer of the femur-tibia control loop. Its sensory cells can generate the known resistance reflexes. The dorsal scoloparium serves no function in the femur-tibia control loop and its stimulation elicited no or only minor reactions in the extensor motoneurones. A comparison with other insect leg proprioceptors shows that a morphological subdivision of these organs often indicates a functional specialization.
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Kittmann R, Schmitz J. Functional specialization of the scoloparia of the femoral chordotonal organ in stick insects. Journal of Experimental Biology. 1992;173:91-108.
Kittmann, R., & Schmitz, J. (1992). Functional specialization of the scoloparia of the femoral chordotonal organ in stick insects. Journal of Experimental Biology, 173, 91-108.
Kittmann, R., and Schmitz, J. (1992). Functional specialization of the scoloparia of the femoral chordotonal organ in stick insects. Journal of Experimental Biology 173, 91-108.
Kittmann, R., & Schmitz, J., 1992. Functional specialization of the scoloparia of the femoral chordotonal organ in stick insects. Journal of Experimental Biology, 173, p 91-108.
R. Kittmann and J. Schmitz, “Functional specialization of the scoloparia of the femoral chordotonal organ in stick insects”, Journal of Experimental Biology, vol. 173, 1992, pp. 91-108.
Kittmann, R., Schmitz, J.: Functional specialization of the scoloparia of the femoral chordotonal organ in stick insects. Journal of Experimental Biology. 173, 91-108 (1992).
Kittmann, Ralf, and Schmitz, Josef. “Functional specialization of the scoloparia of the femoral chordotonal organ in stick insects”. Journal of Experimental Biology 173 (1992): 91-108.
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