Changes in the Frequency of Rhythmic Excitation of Retzius Cells during Thermal Stimulation of Leech Skin
- 6 Downloads
Thermal stimulation of various parts of the skin in Hirudo medicinalis increases the frequency of spontaneous rhythmic excitation of Retzius neurons in leech ganglia. It was shown that the frequency of spontaneous rhythmic excitation of Retzius cells in the segmental ganglion increases only in response to thermal stimulation and returns to initial values upon cooling. This effect was also detected in neurons that are not directly connected by nerve fibers with the particular skin area. Changes in the frequency of spontaneous rhythmic excitation of Retzius cells in the segmental ganglion were observed during thermal stimulation of not only leech body, but also of the head and caudal suckers. These changes in spontaneous rhythmic excitation of Retzius cells in the segmental ganglion during thermal stimulation were observed in Hirudo medicinalis, but not in Macrobdella decora.
Key WordsHirudo medicinalis Macrobdella decora rhythmic excitation thermoreception
Unable to display preview. Download preview PDF.
- 6.Maximov GV, Turovetskii VB, Chatterdji S, Andreev AI, Mironova YE, Brindikova TA, Rubin AB. Role of membrane-bound Ca2+ in regulating relationships between neuron and neuroglia during rhythmic excitation. Biophysics. 2000;45(3):529-533.Google Scholar