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[Functional connections between symmetrical segemental systems for controlling the claw muscles of the crayfish Astacus leptodactylus]. 1977

T A Stepushkina, and G S Kan, and V A Tevileneva

Studies have been made on functional connections between symmetric neuronal ensembles in the 1st thoracal ganglion realizing segmentary control of muscles in the claw dactylopodite. During moderate adequate stimulation of the receptive field, symmetric ensembles of efferent neurons operate independently from each other. Intensive stimulation of the receptive field results in the reflex dactylopodite abduction and in associated excitation of the symmetric contralateral group of corresponding neurons. Interaction of the symmetric ensembles is realized on both the segmentary and supersegmentary levels.

UI MeSH Term Description Entries
D003400 Astacoidea A superfamily of various freshwater CRUSTACEA, in the infraorder Astacidea, comprising the crayfish. Common genera include Astacus and Procambarus. Crayfish resemble lobsters, but are usually much smaller. Astacus,Crayfish,Procambarus,Astacoideas,Crayfishs
D004594 Electrophysiology The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
D005121 Extremities The farthest or outermost projections of the body, such as the HAND and FOOT. Limbs,Extremity,Limb
D005724 Ganglia Clusters of multipolar neurons surrounded by a capsule of loosely organized CONNECTIVE TISSUE located outside the CENTRAL NERVOUS SYSTEM.
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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