Neuronal connections between central and enteric nervous system in the locust, Locusta migratoria

Cell and Tissue Research
Peter Bräunig

Abstract

The number and location of neurons, in the central nervous system, that project into the frontal connective was studied in the locust by using retrograde neurobiotin staining. Staining one frontal connective revealed some 70 neurons in the brain. Most of these were located within both tritocerebral lobes. Additional groups of neurons were located within the deutocerebrum and protocerebrum. Some 60 neurons were labelled in the suboesophageal ganglion. These formed nine discernable populations. In addition, two neurons were located in the prothoracic ganglion and two neurons in the first abdominal neuromere of the metathoracic ganglion. Thus, some 250 neurons located within the head ganglia, and even neurons in thoracic ganglia, project into the ganglia of the enteric nervous system. This indicates that the coordination between the central and enteric ganglia is much more complex than previously thought. With the exception of some previously described dorsal unpaired median neurons and a few motor neurons in the head ganglia, the identity and function of most of these neurons is as yet unknown. Possible functions of the neurons in the thoracic ganglia are discussed.

References

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Citations

May 11, 2010·Journal of Insect Physiology·Lisa Robertson, Angela B Lange
Apr 27, 2010·Journal of Insect Physiology·David Rand, Amir Ayali
Aug 2, 2015·Insect Biochemistry and Molecular Biology·Takayuki KuraishiShoichiro Kurata
Sep 4, 2010·Journal of Insect Physiology·Paul D Cooper, Nancy E Beckage
Oct 28, 2019·British Journal of Pharmacology·Huihong ZengLijian Shao
May 13, 2018·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Abid Mahmood Alvi, Peter Bräunig
Jun 14, 2012·The Journal of Experimental Biology·Lisa RobertsonAngela B Lange

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