Cerebrospinal fluid fills the _________blank.Multiple Choicesubarachnoid spacesubdural spacedural sinusesepidural spaceNone of the choices are correct

Break Down the Problem

1. Analyze the purpose of cerebrospinal fluid (CSF) in the central nervous system.
2. Identify the spaces where CSF is typically located.

Relevant Concepts

1. Cerebrospinal fluid serves as a cushion for the brain, providing necessary nutrients, and removing waste.
2. CSF is primarily found in the subarachnoid space, which is the area between the arachnoid mater and the pia mater.

Analysis and Detail

• The subarachnoid space is filled with CSF, which is crucial for cushioning the brain and spinal cord.
• The subdural space is a potential space that exists between the dura mater and arachnoid mater, but it is not typically filled with CSF.
• The dural sinuses are channels that drain venous blood; they do not contain CSF.
• The epidural space is the space outside the dura mater, which can also contain fat and blood vessels, but not CSF.

Verify and Summarize

After analyzing the choices, it is clear that the correct answer is the subarachnoid space.

Final Answer

Cerebrospinal fluid fills the subarachnoid space.