in the eighteenth century "preanatomical thought" imagined the interior of the body as an "unstructured osmotic space" (127)
126: "blood seems to move in a vague space"
"The material structure of the inside body in the form of blood paths or vessels was negligible for Storch, or at least it was so undetermined and ineffectual that the actual movement could be triggered by some other impulse"
fluids had a "directed orientation" but "these orientations were not embedded in a precise anatomical or physiological structure. Rather, they can best be described as 'inducing' a flow, engraving a 'habit,' 'retaining' a path. The body is merely an outer shell for this movement"