TY - CHAP M1 - Book, Section TI - Pain Mechanisms and Pathways A1 - Freeman, Brian S. A1 - Berger, Jeffrey S. PY - 2024 T2 - Anesthesiology Core Review: Part One: BASIC Exam, 2nd Edition AB - Pain serves an important role in providing essential protective mechanisms against injury. The International Association for the Study of Pain defines pain as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage.” This definition infers that pain has both sensory as well as affective and cognitive consequences. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/09/09 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=1204768863 ER -