Fig. 1From: Finite element analysis of biological soft tissue surrounded by a deformable membrane that controls transmembrane flowDiagrams of hydrated soft tissues in head. The subarachnoid space (SAS) is located between the arachnoid and the pia mater, and it contains a trabecular network, capillaries, and cerebrospinal fluid (CSF) The arachnoid is generally parallel to the pia mater, which adheres to the brain surface, except for the covering of brain sulci. Brain contains with a cellular network, capillaries, and extracellular fluidBack to article page