Insects and Vertebrates: Analogous Structures in Higher Integrative Centers of the Brain

摘要: This work deals with studies on anatomical relationships, neuronal composition, and some synaptic connections that exist in the central complex (CC) supraesophageal ganglion larva of dragonfly g. Aeschna. It has been shown CC contains protocerebral bridge an elongated slightly curved cylindrical shape, fan-shaped ellipsoid bodies a bean-like shape two small roundish noduli. There were revealed (stained) neurons providing both internal its other CNS regions. Connections tritocerebrum, higher center autonomic nervous system, subesophageal ganglion, intermediate “relay” between truncal brain, have established. The existence nuclei abdominal chain is suggested. Connection ocelli traced. Unipolar same type revealed, each them giving collaterals to ending as bushy terminals form main part glomerule bodies. Glomeruli are arranged rows, which cross found. established structure neuropils represent shielding described cerebral cortex, midbrain cerebellar cortex vertebrates. Thus, insects, like vertebrates, structures developed not only optic centers, but also performing integrative functions. A possible functional role discussed.