Motor Control pp 113-137 | Cite as

Supraspinal Mechanisms of Motor Control

  • P. G. Kostyuk

Abstract

The control of spinal reflex mechanisms from supraspinal structures is exerted in the most developed form (in mammals) by four descending systems (cortico-, rubro-, reticulo- and vestibulo-spinal). Other descending systems (for instance, tecto- and interstitio-spinal) being obviously quite important in the early stages of the evolutionary development of the vertebrate nervous system have become in mammals of secondary importance comparing to the above-mentioned systems. Probably because of that they usually remain outside the field of morphological and electrophysiological investigations. All these systems are tightly functionally interconnected during natural reflex activity, and it is usually very difficult to separate the contribution of each of them to the mechanism of the motor act. Nevertheless using an analytical approach it is still possible to define certain specific features in the activity of each descending system.

Keywords

Depression Noradrenaline Pyramid Stimul Dopa 

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Copyright information

© Plenum Press, New York 1973

Authors and Affiliations

  • P. G. Kostyuk
    • 1
  1. 1.S.S.Bogomoletz Institute of PhysiologyKievUSSR

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