Projection patterns of lamina VIII commissural neurons in the lumbar spinal cord of the adult cat: an anterograde neural tracing study

Neuroscience
K MatsuyamaM Aoki

Abstract

This study was designed to characterize the morphology of commissural axons, with the goal of revealing some of the organizing principles of their projections in the lumbosacral cord. Axons were labeled anterogradely with biotinylated-dextran amine which was injected in the left lamina VIII and the adjoining parts of lamina VII in the lumbar segments L5-L6 in seven cats. After 3-4 weeks, commissural axons were well labeled throughout lumbosacral segments L1-S2. After crossing the midline at the injection level, labeled axons traveled rostrally and/or caudally in the contralateral ventral and lateral funiculi giving off multiple axon collaterals. The trajectories of 34 single axons were traced in their entirety from their points of origin to their distal ends. Most of these axons were thin (proximal diameter <3.5 microm) and short (<30 mm), and gave off 6 to 32 axon collaterals at short intercollateral distances (mean <2 mm) in the lumbosacral enlargement. Some thicker axons (diameter >3.5 microm) ascended as far as the thoracic level; these supplied only four to six collaterals at long intercollateral intervals ( approximately 6.5 mm). All of the axons except one projected unilaterally. The axons as a whole terminated throughou...Continue Reading

References

Oct 24, 1975·Experimental Brain Research·B W PetersonR G Mackel
Mar 15, 1976·Experimental Brain Research·A MatsumotoS Mori
Jan 1, 1992·Progress in Neurobiology·E Jankowska
Nov 22, 1992·The Journal of Comparative Neurology·I Silos-Santiago, W D Snider
Nov 22, 1989·The Journal of Comparative Neurology·A D CraigK D Kniffki
Feb 1, 1986·The Journal of Physiology·P J HarrisonD Zytnicki
Apr 1, 1970·The Journal of Comparative Neurology·M Matsushita
Mar 1, 1982·Journal of Neuroscience Methods·C Julien, S Rossignol
Jan 1, 1982·Progress in Brain Research·G Holstege, H G Kuypers
May 26, 1997·The Journal of Comparative Neurology·V G Vanderhorst, G Holstege
Nov 14, 2000·Journal of Neuroscience Methods·A ReinerM G Honig
Jan 5, 2002·The Journal of Comparative Neurology·Deborah M Antonino-GreenDavid S K Magnuson
Apr 16, 2002·The Journal of Comparative Neurology·Mathis Frøshaug StokkeOle Kiehn
May 15, 2003·The Journal of Comparative Neurology·András BirinyiMiklós Antal
Nov 19, 2003·The European Journal of Neuroscience·B Anne BannatyneDavid J Maxwell
Dec 5, 2003·Progress in Brain Research·Kiyoji MatsuyamaShigemi Mori
Jun 1, 1952·The Journal of Comparative Neurology·B REXED
Feb 20, 2004·Journal of Neurophysiology·Kiyoji Matsuyama, Elzbieta Jankowska
Mar 19, 2004·Journal of Neurophysiology·Kiyomi NakayamaNorio Kudo
Apr 6, 2004·The Journal of Comparative Neurology·Stephanie Rebecca Kadison, Zaven Kaprielian
Sep 10, 2004·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·S A EdgleyI Hammar
Nov 24, 2004·The Journal of Comparative Neurology·Mihály PetkóMiklós Antal
Jan 27, 2005·The Journal of Comparative Neurology·Ulla Vig NissenJoel C Glover
Jun 25, 2005·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Laurent JuvinDidier Morin
Dec 13, 2005·Journal of Neurophysiology·Guisheng ZhongRonald M Harris-Warrick

❮ Previous
Next ❯

Citations

Apr 1, 2011·The Journal of Neuroscience : the Official Journal of the Society for Neuroscience·Linying WuLea Ziskind-Conhaim
Jan 23, 2013·The Journal of Physiology·Elzbieta Jankowska, Ingela Hammar
Mar 5, 2016·Nature Reviews. Neuroscience·Ole Kiehn
Sep 22, 2007·Brain Research Reviews·Elzbieta Jankowska
Sep 5, 2009·The Journal of Comparative Neurology·Carlos Ernesto RestrepoOle Kiehn
Mar 28, 2013·Annals of the New York Academy of Sciences·Lea Ziskind-Conhaim
Jun 7, 2013·Annals of Biomedical Engineering·David J ClarkEvangelos A Christou
Dec 5, 2019·Frontiers in Cellular Neuroscience·Alex M LaliberteTuan Vu Bui
Aug 24, 2019·Frontiers in Neuroinformatics·Raghu Sesha IyengarMohan Raghavan
Nov 7, 2019·Journal of Neurophysiology·David J Maxwell, Demetris S Soteropoulos

❮ Previous
Next ❯

Related Concepts

Related Feeds

Antifungals (ASM)

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.

Antifungals

An antifungal, also known as an antimycotic medication, is a pharmaceutical fungicide or fungistatic used to treat and prevent mycosis such as athlete's foot, ringworm, candidiasis, cryptococcal meningitis, and others. Discover the latest research on antifungals here.