A study has been made of the neurons of the motor and somatic sensory cortices in the primate. The existence of pyramidal and stellate cells in the motor cortex is confirmed and the stellate cells have been subdivided on the basis of features seen with the electron microscope. Large stellate cells receive numerous synapses and have abundant cytoplasm full of endoplasmic reticulum and mitochondria and occur mainly in layers IV and V; small stellate cells receive few synapses and have sparse pale cytoplasm and occur mainly in layer II but also in the deeper layers. A comparative quantitative study of motor and somatic sensory cortex has shown that both contain approximately 70% pyramidal and 30% stellate cells.
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Cajal, S. R. Y. (1909–1911)Histologie du Système nerveux de l'Homme et des Vertébrés, Vol. II. Paris: Maloine.
Colonnier, M. (1968) Synaptic patterns on different cell types in the different laminae of the cat visual cortex.Brain Research 9, 268–87.
Fox, C. Q. andDiamond, M. C. (1971) Morphological and quantitative evaluation of nonpyramidal neurones from rat visual cortex: a light and electron microscopic study.Anatomical Record 169, 477–8.
Garey, L. J. (1971) A light and electron microscopic study of the visual cortex of the cat and monkey.Proceedings of the Royal Society of London, Series B 179, 21–40.
Hubel, D. H. andWiesel, T. N. (1965) Receptive fields and functional architecture in two non-striate visual areas (18 and 19) of the cat.Journal of Neurophysiology 28, 227–89.
Kaiserman-Abramof, I. R. andPeters, A. (1972) Some aspects of the morphology of Betz cells in the cerebral cortex of the cat.Brain Research 43, 527–46.
Jones, E. G. andPowell, T. P. S. (1970) Electron microscopy of the somatic sensory cortex of the cat. I. Cell types and synaptic organisation.Philosophical Transactions of the Royal Society, Series B 257, 1–11.
Marin-Padilla, M. (1969) Origin of the pericellular baskets of the human motor cortex: a Golgi study.Brain Research 14, 633–46.
Peters, A. (1971) Stellate cells of the rat parietal cortex.Journal of Comparative Neurology 141, 345–74.
Peters, A. andKaiserman-Abramof, E. R. (1970) The small pyramidal neuron of rat cerebral cortex. The perikaryon, dendrites and spines.American Journal of Anatomy 127, 321–56.
Powell, T. P. S. andMountcastle, V. B. (1959) Some aspects of the functional organisation of the cortex of the postcentral gyrus of the monkey: a correlation of findings obtained in a single unit analysis with cytoarchitecture.Johns Hopkins Hospital Bulletin 105, 133–62.
Sholl, D. A. (1955) The organisation of the visual cortex in the cat.Journal of Anatomy 89, 33–46.
Sloper, J. J. (1972) Gap junctions between dendrites in the primate neocortex.Brain Research 44, 641–6.
Sloper, J. J. (1973) An electron microscope study of the termination of afferent connectons to the primate motor cortex.Journal of Neurocytology 2, 361–8.
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Sloper, J.J. An electron microscopic study of the neurons of the primate motor and somatic sensory cortices. J Neurocytol 2, 351–359 (1973). https://doi.org/10.1007/BF01103793
- Electron Microscope
- Endoplasmic Reticulum
- Microscopic Study
- Motor Cortex
- Deep Layer