The excess cerebrospinal fluid drains from the subarachnoid space directly into the
A)venous system.
B)arachnoid villi of the dural sinuses.
C)arteries.
D)white matter.

Question

Quizplus · Accepted Answer

The excess cerebrospinal fluid (CSF) drains from the subarachnoid space into the venous system indirectly through the arachnoid villi (also known as arachnoid granulations) of the dural sinuses. These structures act as one-way valves that allow CSF to exit the subarachnoid space and enter the venous circulation.

The Excess Cerebrospinal Fluid Drains from the Subarachnoid Space Directly