The density of another substance relative to this substance is defined as baricity.
This substance can be identified by testing for beta-2 transferrin. The protein content of this substance is analyzed by Pandy's Test. The density of another substance relative to this substance is defined as baricity. Arachnoid villi restrict it to flow one way. This substance is produced by ependymal cells of the choroid plexus. Oligoclonal banding in this substance is an important diagnostic test for multiple sclerosis. When it is collected from a patient, they are usually laid on their side in a fetal position and a very long needle is inserted between two lumbar vertebrae. For 10 points, name this clear bodily fluid that protects the brain and is usually known by a three letter acronym.
This substance can be identified by testing for beta-2 transferrin.
cerebrospinal fluid [or CSF]