Skip to main content
Fig. 2 | Fluids and Barriers of the CNS

Fig. 2

From: Measurements of cerebrospinal fluid production: a review of the limitations and advantages of current methodologies

Fig. 2

Comparison of Relative Cell Volumes Between the Vein of Choroid Plexus and Aorta. A catheter is inserted into a rat femoral artery and pushed into the aorta to collect aortic blood in Tube A. A micropipette is introduced into the anterior part of the main choroidal vein to collect venous blood in Tube B. The hematocrit is measured in aortic blood (Tube A) and in venous blood of the choroid plexus (Tube B). The CSF production rate is calculated as being equal to the relative volume loss of the plasma compartment during the transit of blood through the choroid plexus

Back to article page