Neural networks in the mushroom bodies of the honeybee |
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Authors: | P.G. Mobbs |
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Affiliation: | School of Biological Sciences, Queen Mary College, Mile End Road, London El 4NS, U.K. |
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Abstract: | The Kenyon cells (K cells) or intrinsic neurones of the honeybee's mushroom bodies are organised as a series of arrays. In the calyces the arrays form concentric rings that are represented by rectilinear layers in the α and β lobes. The inputs to the calyces have been revealed by intraneuropilar cobalt injection into the optic and antennal lobes. Neurones from the medulla project to the collar neuropil of the calyx while the relay neurones of the antennal lobe project to the lip neuropil of the calyx. Extrinsic neurones of unknown polarity penetrating the α and β lobes have branching patterns that reflect the layered pattern of the intrinsic neurones. The study illustrates the feasibility of producing a fine grain map of the optic lobe and antennal lobe inputs to the mushroom bodies. It is suggested that the map could be produced by making cobalt injections into individual identified antennal glomeruli and at known sites in the medulla retinotopic mosaic. |
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Keywords: | Mushroom bodies corpora pedunculata insect neuroanatomy honeybee cobalt chloride staining |
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