TY - CHAP M1 - Book, Section TI - Cerebrospinal Fluid A1 - Freeman, Brian S. A1 - Berger, Jeffrey S. PY - 2024 T2 - Anesthesiology Core Review: Part One: BASIC Exam, 2nd Edition AB - Cerebrospinal fluid (CSF) surrounds the brain and spinal cord in the subarachnoid space. It primarily protects these structures as a cushion and mechanical barrier. Although composed of 99% water, CSF contains glucose, proteins, and lipids to provide nutrition to the central nervous system. Moreover, as part of the blood–CSF barrier, it serves as an excretory pathway to remove waste products by tightly regulating the brain’ s extracellular ionic milieu. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/09/19 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1204768716 ER -