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The figures in this diagram illustrate some situations related to Monro-Kellie hypothesis. The proportions are not equivalent to real for teaching purposes.
- The skull and its contents.
- The cranial volume is fixed and the brain tissue, blood and CSF are contained in it.
- Liquid effacement and possible reduced blood volume at brain edema or expansive lesion.
- Reduced blood volume with CSF hypertension.
- Venous engorgement at CSF hypotension.