TY - CHAP M1 - Book, Section TI - Vascular Supply of the Brain A1 - Waxman, Stephen G. Y1 - 2020 N1 - T2 - Clinical Neuroanatomy, 29e AB - It is essential for all clinicians to be familiar with vascular disease of the brain. The brain and spinal cord are critically dependent on an uninterrupted supply of oxygenated blood, and thus are dependent on uninterrupted flow through the cerebral vessels. About 18% of the total blood volume in the body circulates in the brain, which accounts for about 2% of the body weight. The blood transports oxygen, nutrients, and other substances necessary for proper functioning of the brain and carries away metabolites. Loss of consciousness occurs in less than 15 seconds after blood flow to the brain has stopped, and irreparable damage to the brain tissue occurs within 5 minutes. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - neurology.mhmedical.com/content.aspx?aid=1186189843 ER -