The density, distribution and topographical organization of spinocervical tract neurones in the cat

The Journal of Physiology
A G BrownP J Snow

Abstract

1. In acute experiments, detailed grids of micro-electrode recordings were made from spinocervical tract (s.c.t.) cells in the lumbosacral cord of anaesthetized cats. These grids provided electrophysiological data on the location, distribution, density and somatotopic organization of s.c.t. neurones.2. In acute experiments lasting up to 48 hr, retrograde labelling of s.c.t. cells was carried out by injecting horseradish peroxidase into the lateral cervical nucleus in anaesthetized cats. The aim was to flood the nucleus with the enzyme so that all s.c.t. neurones would be labelled in order to provide an independent check on the location, density and distribution data obtained in the electrophysiological experiments.3. The electrophysiological and the anatomical experiments were sometimes performed on the same animal.4. The electrophysiological and anatomical results were in excellent agreement. (a) S.c.t. cells are located mainly in ipsilateral laminae III, IV and V. About 25% are in lamina III, 60% in lamina IV and 10% in lamina V. There are a few cells in laminae I, II and VI making up the remaining 5%. (b) There are about 550-800 s.c.t. cells in the lumbosacral enlargement (L4-S2 inclusive) on each side of the cord. Most cell...Continue Reading

Citations

Feb 1, 1996·Progress in Neurobiology·P Wilson, P D Kitchener
Jan 1, 1981·Progress in Neurobiology·A G Brown
Feb 1, 1995·Brain Research. Brain Research Reviews·B H Pubols, J H Haring
Aug 1, 1985·Brain Research·D Albe-FessardW D Willis
Sep 25, 1999·Neuroscience Research·J HuberP Krutki
Jan 1, 1981·Pharmacology & Therapeutics·D L Hammond, T L Yaksh
May 14, 2004·Brain Research·Paul B BrownRonald Millecchia
Feb 1, 1987·Experimental Neurology·D J Maxwell, H R Koerber
Aug 27, 2013·Neuron·Victoria E Abraira, David D Ginty
Jul 26, 1991·Brain Research·M V Smith, A V Apkarian
Feb 21, 1997·Journal of Insect Physiology·M Burrows, P L. Newland
Apr 20, 1984·The Journal of Comparative Neurology·G J BennettR Dubner
Feb 1, 1993·Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology·T Nagayama, P L Newland
Jan 1, 1997·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·W D Willis, K N Westlund
Mar 17, 2004·The Journal of Comparative Neurology·Leonora J MoutonGert Holstege
Jun 16, 2018·History and Philosophy of the Life Sciences·Alessio Plebe
Apr 1, 1989·The Journal of Comparative Neurology·M F JacquinR W Rhoades
Mar 15, 1993·The Journal of Comparative Neurology·J Broman, B H Pubols
Aug 1, 1992·The Journal of Comparative Neurology·A D CraigA Blomqvist
Dec 8, 1988·The Journal of Comparative Neurology·E J CasaleA Rustioni
Jul 1, 1987·The Journal of Comparative Neurology·C J Woolf
Nov 1, 1983·The Journal of Comparative Neurology·R L NahinG J Giesler
Oct 29, 2005·The Journal of Comparative Neurology·Hiroshi NishinoMakoto Mizunami
Oct 29, 1991·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·P D Wall, P Shortland
Feb 8, 1988·The Journal of Comparative Neurology·G J GieslerG Grant
Jan 1, 1991·The European Journal of Neuroscience·Peter Shortland, Maria Fitzgerald
Feb 19, 1985·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·A IggoS Fleetwood-Walker
Feb 19, 1985·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·W D Willis

❮ Previous
Next ❯

Related Concepts

Related Feeds

Barrel cortex

Here is the latest research on barrel cortex, a region of somatosensory and motor corticies in the brain, which are used by animals that rely on whiskers for world exploration.