Marson Klik Poly-Nut Inserts. Marson KlikÂ® Poly-Nuts. Aluminum & Plated Steel. KlikÂ® Poly-Nuts can be used in a wide range of applications and are designed to provide a very efficient and cost-effective method of placing permanent threads in thin materials. Installed from one side, KlikÂ® Poly-Nuts are perfect for use in metal, fiberglass and rigid plastic previously too thin for tapped threads.
Cerebrospinal fluid (CSF), a clear, colorless fluid produced in the brain, contains glucose, proteins, and other substances also found in the blood. CSF surrounds the brain and spinal cord, serving as a cushion for the brain in the skull.
Spinal CSF Leak Foundation. Overview of Spinal CSF Leaks. The brain and spinal cord are bathed in fluid known as cerebrospinal fluid (CSF). This fluid is held inside layers of connective tissue called the meninges which surround the brain and spinal cord. There are three meningeal layers: pia mater; arachnoid mater; dura mater.