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July 23, 1938

The Brain and Its Environment

JAMA. 1938;111(4):346. doi:10.1001/jama.1938.02790300056026

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By stating that Dr. Yandell Henderson is responsible for the title of his book, the author escapes the criticism that the title is more comprehensive than the subject matter. However, the small size of the volume will warn wouldbe purchasers that they are not to expect a comprehensive and detailed discussion of the brain and its environment. The publication comprises the Terry lectures given at Yale. Two of three lectures deal with observations of the living fetus of the goat. There are disputed points of anatomy to be settled. Then the author brings out the interesting fact that, during the latter part of pregnancy, blood flow to the fetus does not increase along with the increase in weight and that the oxygen saturation of the blood going to the brain progressively falls, so that at term the arterial blood is only half saturated, the equivalent of living at an altitude

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