Figure 7

Diagram illustrating our model of the organization of a capillary in the CNS. A) Size of the capillary luminal area when the endothelial cell cytoplasmic volume is reduced. B) The capillary luminal area when the endothelial cell cytoplasmic volume is increased. Note that the outer capillary diameter does not change (for more detail see text). As, astrocyte; Ax, axon; BL, basal lamina; EC, endothelial cell; Ne, neuron.