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The News of Altai State University
Print ISSN 1561-9443
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Content of Special Issue 1999
Physiology of the man
Soil Science
Special Issue1999

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Yu.S. Korenkevich, N.N. Rheytskaya

Trunk nervous system oligomerisation on Diptera

It was studied somatic section of trunk nervous system at 218 specimens (23 species, 20 genera, 11 families) of Diptera in connection with innervating region (pectoral and abdominal musculature) and body segmentation. It is established high degree of variability of ganglion number (1-7) in abdominal nervous chain. The pectoral ganglia are merded to unified syn-ganglion at the studied Diptera. Number of free abdominal ganglia varies between 1 and 6. It is established attended dependence of degree of nervous system oligomerization, pectoral and abdominal musculature and body segmentation.

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