Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

[The pyramidal tract. Recent anatomic and physiologic findings].

J Armand

    Revue Neurologique
    |January 1, 1984
    PubMed
    Summary

    The study examines the corticospinal tract

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    A modelling approach for the nonlinear dynamics of assembled structures undergoing fretting wear.

    Proceedings. Mathematical, physical, and engineering sciences·2019
    Same author

    Dual organization of motor corticospinal tract in the cat.

    Neuroscience letters·2009
    Same author

    Regulatory barrier to new vaccine development... thinking outside the box.

    Developments in biologicals·2002
    Same author

    Functional differences in corticospinal projections from macaque primary motor cortex and supplementary motor area.

    Advances in experimental medicine and biology·2002
    Same author

    Differences in the corticospinal projection from primary motor cortex and supplementary motor area to macaque upper limb motoneurons: an anatomical and electrophysiological study.

    Cerebral cortex (New York, N.Y. : 1991)·2002
    Same author

    Combination raltitrexed (Tomudex(R))-oxaliplatin: a step forward in the struggle against mesothelioma? The Institut Gustave Roussy experience with chemotherapy and chemo-immunotherapy in mesothelioma.

    European journal of cancer (Oxford, England : 1990)·2000

    Area of Science:

    • Neuroscience
    • Comparative Anatomy
    • Motor Control

    Background:

    • The corticospinal tract (CST) is crucial for voluntary movement.
    • Understanding its evolution and variations across species is key to comprehending motor control.

    Purpose of the Study:

    • To investigate the cortical origin and spinal terminations of the CST in various mammals.
    • To compare anatomical findings with species' motor capacities and deficits.

    Main Methods:

    • Classical neuro-anatomical methods (retrograde degeneration, fiber counting).
    • Modern retrograde transport tracing techniques.
    • Electrophysiological studies in conscious animals.

    Main Results:

    • CST fiber number and diameter vary across mammals, increasing with evolutionary advancement.
    • Spinal termination patterns of CST fibers differ significantly, ranging from cervical to widespread spinal cord innervation.
    • Axonal collaterals have diverse targets, including other descending/ascending pathways and cerebellar projections.

    Conclusions:

    • The CST exhibits significant structural and functional diversity across mammalian species.
    • These variations correlate with differences in motor abilities and deficits following lesions.
    • The CST is a complex system composed of multiple subsystems involved in various motor control aspects.

    Related Experiment Videos