Nikolas
Created page with "The brain needs a very large amount of blood. It weighs only 1300g, approximately 2% of the body weight, but uses 15% of the cardiac output, consumes 25% of the oxygen and 70% of the glucose. There are no energy stores in the neurons, so a short (1-2s) circulatory arrest results in loss of consciousness. Cerebral blood flow can be measured in absolute terms (700-800 mL/min) or per 100g of brain tissue. On average it is 60 mL/100g/min. If this value decreases below 20 th..."