How many neurons are in a leech?
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64 Citations | Since the cell bodies of leech neurons are free of synapses, the receptors that give rise to these responses are extrasynaptic. |
These highly specific expression patterns are consistent with the hypothesis that leech netrin plays a role in forming the major interganglionic neuronal tracts and in defining ventral versus dorsal domains of peripheral innervation. | |
01 Jul 1984-Journal of Comparative Physiology A-neuroethology Sensory Neural and Behavioral Physiology 159 Citations | Well-fed leeches do not normally bite, but a brief bath in 5-HT will evoke biting behavior by them as well.5.Serotonin is localized to a limited population of identifiable neurons in the C. N. S., and plays a pivotal and mandatory role in organizing the feeding behavior of the medicinal leech. |
45 Citations | These findings identify a set of candidate guidance cells for axonal outgrowth in the leech, similar to those previously described in the developing nervous system of insects. |
These results demonstrate that cholinergic motoneurons can be differentiated from other cells in the leech nervous system by their high intracellular concentration of AChE. | |
These neurons are likely to mediate swim cessation caused by cell Tr2 activity, and thus play the role of intermediate control cells in the leech CNS. | |
63 Citations | The results account for distinctive features of successful repair in the adult leech, where axonal sprouting and target selection can be influenced by unequal competition between neurons. |
Another substrate, promoting even more extensive sprouting of leech neurons, is cell-free extracellular matrix obtained from leech ganglion capsules. | |
These results provide evidence that adult DL and VL leech neurons retain intrinsic information for determining a variety of their properties in culture: In particular, they reproduce type-specific neuritic patterns in the absence of extrinsic guidance cues. | |
The leech CNS has expanded our understanding of how the nervous system produces behavior and continues to serve as an excellent model in this endeavor. | |
Thus, the leech brain may represent a simple model for the study of these enzymes. | |
36 Citations | This makes the leech exceptionally attractive for neuroethological studies because it is one of the simplest organisms in which the methods of psychology and neurobiology can be combined. |
The data imply the existence of two kinds of Na channels in normal, fully differentiated leech neurons. |