Amina Essawy
Zoology Department, Faculty of Science, Alexandria University, Alexandria, Egypt
ABSTRACT
The paired buccal ganglia of Eobania vermiculata were investigated by light and electron microscopical methods, and a surface map of the ganglia was constructed. Mostly eight paired plus an unpaired buccal nerves were observed in dissected animals. Four giant neurons with a diameter more than 100 μm were identified in the lateral region of each ganglion. Besides the giant neurons, middle - ( 30-60μm) as well as small- ( <30μm) sized neurons were localized. Possible axonal projections of buccal neurons in the pharyngeal nerves innervating the buccal musculature were determined with the aid of retrograde infusion of cobalt lysine. Large amounts of neuro secretory granules in most neurons were also present. In the neuropile of the ganglion, synapses were found in large numbers which are of axo-axonic type. The map produced herein provides an important first step towards the neural circuitry controlling feeding behavior in Eobania vermiculata.
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Amina Essawy, 2001. Mapping of Buccal Neurons Innervating the Feeding Apparatus of Eobania vermiculata (Gastropoda, pulmonata). Journal of Biological Sciences, 1: 645-650.
DOI: 10.3923/jbs.2001.645.650
URL: https://scialert.net/abstract/?doi=jbs.2001.645.650
DOI: 10.3923/jbs.2001.645.650
URL: https://scialert.net/abstract/?doi=jbs.2001.645.650
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