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Assaying Predatory Feeding Behaviors in Pristionchus and Other Nematodes
Published on: September 4, 2016
The innervation of some proboscis structures involved in feeding behavior of the blowfly (Calliphora vicina)
P van Mier1, L van der Molen1, H van der Starre1
1Zoological Laboratory, State University of Leiden, 2300 RA Leiden, The Netherlands.
Abstract:
The microtopology of the motoneurons involved in protraction and retraction of the proboscis of the blowfly (Calliphora vicina) has been studied. In addition, taste input from the labellar hairs was investigated. As a result of this study it appears that protraction movements are controlled by two while retraction movements are guided by three motoneurons on each side. The neurons in each group apear to be in ipsicontralateral communication with each other. The musculi protractores fulcri (MPF) probably contain a proprioceptive cell group which projects to the MPF motoneurons. It is proposed that the proboscis motor system can be modulated by proprioception as well as by chemosensory labellar input. Neurosecretory cells may be involved in adjusting muscle power.
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