Functional Activation of Energy Metabolism in Nervous Tissue: Where and Why
In tissues that do physical work, such as heart, skeletal muscle, and kidney, rates of energy metabolism under physiological conditions vary more or less in proportion to the amount of work being done by the tissue. To demonstrate such a relationship in brain has been difficult because, first of all, the exact nature of the physical work done by brain tissue is not obvious, and, secondly, the brain mediates a variety of functions, each of which is localized in discrete regions specific for the function and not in the tissue as a whole. It is only recently that it has become possible to measure the rates of energy metabolism in such discrete structural and functional components of the nervous system in conscious, behaving animals and man and to relate these rates to the levels of functional activity within them.
KeywordsRetina Radioactive Isotope Neurol NMDA Choline
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