Fig. 5From: Mathematical modelling of the CSF system: effects of microstructures and posture on optic nerve subarachnoid space dynamicsONSAS pressure during the change in posture for the different porosity settings, showing a strong dependence on the baseline porosity. ONSAS pressures in the upright posture are upheld due to compartmentalization of the ONSAS. The pressures are nearly equilibrated already after 10–15 minBack to article page