| | 1 | Author
| Z. Naturforsch | Requires cookie* | | | Title
| Propagation of Voltage Transients in Arborized Neurites of Retzius Cells of the Leech in Culture  | | | | Abstract
| Propagation o f electrical signals is studied in Retzius cells o f the leech in culture using volt age-sensitive fluorescent dyes at a spatial resolution o f 8 x 8 (am2 and 1 4 x 1 4 |im 2 and at a sam pling interval o f 0.12 ms. The neurons are stimulated by a microelectrode impaled in the soma. Action potentials o f a halfwidth o f 2 -3 ms are triggered close to the end o f the primary neurite dissociated from the leech. They propagate back to the soma at invariant halfwidth at a veloci ty o f 5 0 -2 3 0 jam/ms. They pervade extended arborized secondary neurites which are grown on extracellular matrix protein. Their width is enhanced up to a factor two. The velocity is around 1 0 0 -150 (im/ms such that delays up to 3.5 ms are observed. Accordingly the neuritic trees are not isopotential. The features o f propagation are found to be incompatible with passive spread. | | | |
Reference
| Z. Naturforsch. 46c, 687—6 (1991); received March 5 1991 | | | |
Published
| 1991 | | | |
Keywords
| Leech, Neuron, Arborization, A ction Potential, Fluorescence | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_C/46/ZNC-1991-46c-0687.pdf | | | | Identifier
| ZNC-1991-46c-0687 | | | | Volume
| 46 | |
|
