it is a colourless, hydraulic cushion found within the ventricles of the brain, subarachnoid space around brain and spinal cord.functions: it acts as a shock absorber to protect the brain and spinal...
The term fluid is a general one, and we apply it to substances that will change shape (deform) under any stress. In that light, a liquid, a gas or a plasma are considered fluids. There may be some...