rates of drainage from brain and flow into cerebrospinal fluid ( csf ) were estimated from the efflux from brain and influx into csf of radioiodinated albumin ( risa ) following microinjection into caudate nucleus , internal capsule , or midbrain : pathways of flow through the subarachnoid space and into lymph were traced from the distribution of horseradish peroxidase and/or evans blue-labeled albumin after injection into brain .
C0007461
caudate nucleus
C0006104
brain