pia and the arachnoid
The subarachnoid space lies between the arachnoid mater and the pia mater, which are the middle and inner layers of the meninges, respectively. This space is filled with cerebrospinal fluid that cushions and protects the brain and spinal cord.
The five regions of space between the outer layer of the meninges and the cerebral cortex are the epidural space, subdural space, arachnoid mater, subarachnoid space, and pia mater. The epidural space is located between the dura mater and the skull, while the subdural space lies between the dura mater and arachnoid mater. The arachnoid mater is a web-like structure, followed by the subarachnoid space filled with cerebrospinal fluid, and finally, the pia mater directly covers the cerebral cortex. These layers protect the brain and provide cushioning, nutrients, and waste removal.
pia and arachnoid
nothing it is just space
The subdural space lies between the dural and arachnoid layers of the meninges.
When performing a lumbar puncture, the needle typically stops before it pierces the dura mater, which is the tough outer layer surrounding the spinal cord. The goal is to reach the subarachnoid space, which lies beneath the arachnoid mater and contains cerebrospinal fluid. Care is taken to avoid damaging the dura and the underlying tissue, ensuring a safe procedure. Proper technique and anatomical knowledge are essential to successfully navigate to the subarachnoid space.
Synapse.
yes, there is. it lies between mars and jupiter.
Denmark lies between Germany and Sweeden.
Europe lies directly north of Africa.
George Rodrigue from his book, Blue Dog
dura mater- this is the strongest outermost covering and external to it is epidural space filled with adipose and veins arachnoid mater- is a web-like middle cover and deep to it lies the subarachnoid space which is filled with CSF pia mater- is the very thin innermost covering and clings tightly to the brain and spinal cord