Neurons participating in contraction of the ommatophore retractor ofHelix lucorum were studied by morphological and electrophysiological methods. Staining by the cobalt filling method revealed a giant cerebral ganglion neuron which sends a fiber into the motor branch of the ipsilateral optic nerve. Both spontaneous and evoked contraction of the retractor was shown to be preceded by a volley of action potentials in the giant neuron. The high-frequency volley of impulses evoked by intracellular stimulation of this neuron leads to contraction of the ipsilateral ommatophore retractor; the intensity of this contraction depends on the discharge frequency. The composition of the sensory inputs of the neuron is discussed. A conclusion is drawn on the motor function of this cerebral ganglion neuron in the escape reflex ofH. lucorum.
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P. M. Balaban, O. A. Maksimova, I. S. Zakharov, and V. N. Mats, "Electrophysiological characteristics of identified nerve cells of the snailHelix lucorum," Zh. Evol. Biokhim. Fiziol.,17, No. 4, 366 (1981).
F. I. Samygin and L. D. Karpenko, "Localization of neurons innervating the columella muscles of the snail," Neirofiziologiya,12, No. 6, 637 (1980).
P. M. Balaban, "A system of command neurons in snail's escape behavior," Acta Neurobiol. Exp.,39, NO. 2, 97 (1979).
B. Hanström, "Über die sogenannten Intelligenzsphären des Molluskengehirns und die Innervation des Tentakels vonHelix," Acta Zool.,6, No. 1, 138 (1925).
B. Jahan-Parward and S. M. Fredman, "Control of pedal and parapodial movements inAplysia. 2. Cerebral ganglion neurons," J. Neurophysiol.,41, Mo. 3, 609 (1978).
C. Lazar, "Application of cobalt filling technique to show retinal projections in the frog," Neuroscience,3, No. 8, 725 (1978).
A. J. Lever, T. A. de Vliger, and H. Krool., "A behavioural and electrophysiological study of the withdrawal reaction of the pond snailLymnaea stagnalis (L.) with particular reference to tentacle contraction," Proc. Koninkl. Nederl. Acad. Wet., Ser. C,80, No. 2, 105 (1977).
D. C. Rogers, "Fine structure of smooth muscle and neuromuscular junctions in the optic tentacles ofHelix aspersa andLimax flavus," Z. Zellforsch.,89, No. 1, 80 (1968).
E. Schmalz, "Zur Morphologie des Nervensystem vonHelix pomatia," Z. Wiss. Zool.,3, No. 4, 506 (1914).
L. Tauc and G. M. Hughes, "Modes of initiation and propagation of spikes in the branching axons of molluscan central neurones," J. Gen Physiol.,46, No. 5, 533 (1963).
W. Trappmann, "Die Musculatur vonHelix pomatia L.," Z. Wiss. Zool., Ser. A,105, No. 4, 489 (1916).
H. G. Wolff, "Statocysts and geotactic behavior in gastropod molluscs," Fortschr. Zool.,23, No. 1, 63 (1975).
Research Institute for Biological Testing of Chemical Compounds, Ministry of the Medical Industry, Staraya Kupavna, Moscow Province. Institute of Higher Nervous Activity and Neurophysiology, Academy of Sciences of the USSR, Moscow. Translated from Neirofiziologiya, Vol. 14, No. 4, pp. 353–358, July–August, 1982.
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Zakharov, I.S., Mats, V.N. & Balaban, P.M. Role of the giant cerebral ganglion neuron in control of defensive behavior ofHelix lucorum . Neurophysiology 14, 262–266 (1982). https://doi.org/10.1007/BF01058733
- Optic Nerve
- Motor Function
- Sensory Input
- Ganglion Neuron