Accessing the subarachnoid space via intrathecal needle placement can be done in nonhuman primates (NHPs) and other species to collect cerebral spinal fluid (CSF) or to deliver agents into the CSF.

Cerebrospinal fluid (CSF) is a clear bodily fluid that cushions and protects your brain and spinal cord. A CSF protein test involves taking a fluid sample from your spinal column using a needle. This ...

Doctors analyze cerebrospinal fluid (CSF) to help identify conditions that affect your brain and spine. CSF samples are typically collected through a lumbar (spinal) tap. CSF is the clear fluid that ...