Which of the Following is Located Within the Subarachnoid Space

Question

Which of the following is located within the subarachnoid space?
A) Blood
B) Lymph
C) Cerebrospinal fluid
D) Cytoplasm

Accepted Answer

The subarachnoid space is located between the arachnoid mater and the pia mater layers of the meninges surrounding the brain and spinal cord. It is filled with cerebrospinal fluid, which serves as a protective cushion for the central nervous system. Blood and lymph do not normally circulate within this space, and cytoplasm is a component of cells, not a fluid that would be found in the subarachnoid space.