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In parkinsonism, globus pallidus interna hyperactivity results in more inhibitory GABAergic input to the PPN, leading to reduced activity of the glutamatergic PPN neurons, which project to the reticulospinal neurons of brainstem and spinal cord, causing abnormal changes in locomotion and muscle tone.
white matter tracts: corticospinal tract, reticulospinal tracts and afferent tracts, e.
In future research, an alteration of the remaining spinal cord axons, especially corticospinal neurons and reticulospinal neurons, should be closely examined using neuroanatomical and neurophysiological study.
Drew, "Vestibulospinal and reticulospinal neuronal activity during locomotion in the intact cat.
Centrally, the reticulospinal tract of the motor system [5] and the direct and indirect pathways of the basal ganglia contribute to increased tonic muscle activity [6].
This may be due to the creation of specific neural connections within the reticulospinal neurons and central pattern generators by repetitive actions such as running (Sinnatamby, 2006).
The lateral corticospinal and reticulospinal cords, in particular, are responsible for innervation of the lower urinary tract.
There are two distinct neural systems which collaborate in the "paralysis" of normal REM sleep, one is mediated through the active inhibition by neurons in the nucleus reticularis magnocellularis in the medulla via the ventrolateral reticulospinal tract synapsing on the spinal motor neurons and the other system suppresses locomotor activity and is located in pontine region.
Acceleration of C-fibres assist in controlling and modulating descending inhibitory systems, especially in the reticulospinal tract (Melzack 1996).
Within the lamprey CNS, a subset of giant reticulospinal (RS) neurons fail to regenerate after injury, while others in their cohort reproducibly do, offering an additional opportunity: to compare the GRNs of "good" and "bad" regenerators (Jacobs et al, 1997).
Termination mode and branching patterns of reticuloreticular and reticulospinal fibers of the nucleus reticularis pontis oralis in the cat: an anterograde PHA-L tracing study.