space between the arachnoid and the pia mater; it surrounds the brain and the spinal cord; cerebrospinal fluid circulates through it

a space in the meninges beneath the arachnoid membrane and above the pia mater that contains the cerebrospinal fluid

Injections of local anesthetic into the lumbar subarachnoid space are often called "spinal anesthesia", because they affect the preganglionic fibers in the spinal cord. The intent is to produce complete spinal cord "denervation" including all sensory and motor neurons in the area.

thin chamber (less than 1 mm) on the surface of the brain that is filled with cerebrospinal fluid; CSF must flow through the subarachnoid space to reach the venous structures that absorb it into the blood stream; the major arteries and veins also pass through the subarachnoid space; this extensive space is subdivided by partial walls into "cisterns", the largest of which is called the cisterna magna.

A space between the arachnoid and pial membranes that surround the brain and spinal cord that is filled with cerebrospinal fluid. It contains fibrous trabeculae, blood vessels and antigen presenting cells (6).

Space filled by CSF between the arachnoid membrane and pia mater.

Space between the arachnoid membrane of the brain and another membrane (piamater) which is in direct contact with the central nervous system.

Space between the arachnoid and pia mater that contains cerebrospinal fluid (CSF) and the vessels of the spinal cord. This space in the spinal region is narrow, except here it is below the conus medullaris. It is largest in the lower part of the vertebral canal, where the CSF surrounds the nerve roots comprising the cauda equina. Within the dural sac, fro L2 to S1, it is known as the lumbar cistern and besides the CSF, it contains the cauda equina and filum terminale.

a space that lies between the arachnoid mater and pia mater; it is filled with cerebrospinal fluid; all blood vessels entering the brain and cranial nerves pass through the subarachnoid space

The space between the arachnoid and the pia mater membranes surrounding the brain that provides a labyrinth of interconnecting passageways throughout the brain. All the major arteries of the brain are located in this space, which is important to the physician in determining the type of cerebrovascular accident (CVA), or stroke, the patient is experiencing.

The CSF filled space inside the dura and arachnoidea. In myelography contrast medium is injected into the subarachnoid space.

the space between the pia and arachnoid mater of the brain and spinal cord that contains cerebrospinal fluid (CSF).

A meningeal space containing cerebrospinal fluid; the area between the arachnoid membrane and the pia mater.

The cerebrospinal fluid filled space between the arachnoid and the pia mater.

space underneath the arachnoid, but above the actual brain and spinal tissue, which contains the cerebrospinal fluid

situated under the arachnoid membrane and above the pia mater in the brain. It is the inner most of the three membranes that cover the brain and spinal cord. Hematomas may occur in this space following a violent shaking episode.

a space between the inside of the skull and brain surface that is filled with cerebral spinal fluid.

The space between the membrane covering the spinal cord and the cord itself.

In the brain, the subarachnoid cavity (subarachnoid space) is the interval between the arachnoid mater and pia mater.