Autoregulation of Oxygen Supply to Brain Tissue (Introductory Paper)
The availability of oxygen throughout the brain is far from homogeneous, oxygen tensions varying 30 or 40 mm Hg within a distance of a few microns (1–4). However, the pO2 at a given micro-area of cerebral tissue is remarkably constant, and can be changed only through major alterations in blood supply or the composition of respiratory gases (1,4,10). We have defined the different processes arrived at maintaining the constant brain cell oxygen micro-environment as “oxygen autoregulatory mechanisms.”
KeywordsOxygen Transport Hyperbaric Oxygen Arterial Blood Flow Tissue Oxygen Tension Hyperbaric Chamber
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