Where Is the Subarachnoid Space Located?

It is located at the lower lumbar spinal canal. It extends from the conus medullaris around the level of the first and second lumbar vertebrae to the level of the second sacral vertebra. It contains the filum terminale and the cauda equina. During lumbar puncture, the clinician draws CSF from this cistern.

Where is the subarachnoid space in the spinal cord?

The spinal subarachnoid space is the space between the arachnoid mater and pia mater in the spine and is continuous with the intracranial subarachnoid space. It communicates with the intracranial subarachnoid space via the foramen magnum and ends at the level of the S2 vertebra.

Where is the subarachnoid space quizlet?

Subarachnoid space

Immediately deep to the arachnoid mater. Contains cerebrospinal fluid. The arachnoid trabeculae extend through this space from the arachnoid to the underlying pia mater.