The Evolution And Function of Living Purposive Matter
The book The Evolution And Function of Living Purposive Matter was written by author Macnamara, Nottidge Charles, 1832-1918 Here you can read free online of The Evolution And Function of Living Purposive Matter book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Evolution And Function of Living Purposive Matter a good or bad book?
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Not only is the cortex of the cerebral hemispheres in the carnivora more extensive both in superficial area and depth, in proportion to the rest of the brain than it is in birds, but the number of layers of cells forming the cortex and their complexity of arrange- ment, is distinctly of a higher order in the dog than it is in a parrot's brain. The cortex of a dog's cerebral hemispheres consists of several layers of cells which differ in form, and which with certain modifications are to be found... in all parts of the cortex ; the large cells of certain of the motor areas point to the functions performed by the living matter of these cells, and the existence of a polymorphic granular layer of cells is a sure sign of sensory functions.^ We know that bundles of medullated nerve fibres pass in vertical streaks through the deeper layer of cells ; some of these fibres convey impulses derived from the cortex downwards to the basal ganglia, the medulla oblongata and the spinal cord, other fibres pass upwards from these regions to the cortex.
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