Under normal circumstances, the brain relies on energy generated from a continuous supply of oxygen and glucose from the blood. The molar ratio is 5.4 rather than 6.0 as expected for complete oxidation of glucose due to the production of a small amount of lactate. Cerebral blood flow (CBF) in gray matter is approximately 4 times higher than in white matter. Autoregulation is effective in maintaining CBF in healthy human subjects over a wide range of blood pressure from 70 to 150. mm Hg.
|Title of host publication||Encyclopedia of the Neurological Sciences|
|Number of pages||2|
|State||Published - Jan 1 2014|
- Cerebral blood flow
- Cerebral metabolism
- Glucose metabolism
- Oxygen metabolism