Fig. 1
From: Parasagittal dural space and cerebrospinal fluid (CSF) flow across the lifespan in healthy adults
Cerebrospinal fluid (CSF) flow. A Schematic showing the superior sagittal sinus, which is surrounded by the parasagittal dural space, as well as the bulk CSF flow pathway (light green). Here, anterograde flow (mL CSF per unit time) is defined as flow in the cranial-to-caudal direction down the aqueduct, which occurs during systole; retrograde flow is defined as flow in the caudal-to-cranial direction, which occurs during diastole. B A simulated CSF flow time course with terms used in subsequent analyses defined