Conclusions
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1.
The distribution of efferent neurons of various categories, the pyramidal and extrapyramidal systems and corticothalamic neurons, the axons of which terminate in the ventroposterolateral thalamic nucleus and inner geniculate body, was studied in the sensorimotor cortex of cats.
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2.
Several outgoing cells belonging to a single or different categories were found in a large portion of the cortical microregions (88%).
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3.
Outgoing neurons of the categories investigated were not found in some tracts perpendicular to the cortical surface; in those tracts where efferent neurons were found, the cortical regions containing a specific set of outgoing cells usually represented cylinders of 500–700 μm height.
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4.
Individual cortical microregions differed from one another in the set of fast and slow efferent neurons.
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Translated from Zhurnal Vysshei Nervnoi Deyatel'nosti imeni I. P. Pavlova, Vol. 34, No. 2, pp. 311–316, March–April, 1984.
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Veber, N.V., Rapoport, S.S. & Sil'kis, I.G. Distribution of efferent neurons of various types in the motor cortex of the cat. Neurosci Behav Physiol 16, 128–132 (1986). https://doi.org/10.1007/BF01186511
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DOI: https://doi.org/10.1007/BF01186511