RT Book, Section A1 Gayan-Ramirez, Ghislaine A1 Decramer, Marc A2 Grippi, Michael A. A2 Elias, Jack A. A2 Fishman, Jay A. A2 Kotloff, Robert M. A2 Pack, Allan I. A2 Senior, Robert M. A2 Siegel, Mark D. SR Print(0) ID 1122354346 T1 The Respiratory Muscles T2 Fishman's Pulmonary Diseases and Disorders, 5e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 978-0-07-179672-9 LK accessmedicine.mhmedical.com/content.aspx?aid=1122354346 RD 2022/05/18 AB The respiratory muscles constitute a complex pump system. Several muscles comprise this system, represented schematically in Figure 3-1. Breathing under all circumstances requires a coordinated contraction of different respiratory muscles. The most important inspiratory muscle is the diaphragm. The conditions under which this respiratory muscle system weakens and eventually will fail are addressed in other chapters (see Chapters 83, 85, and 104). This chapter focuses on structural and functional properties of the respiratory muscles, respiratory muscle action, and respiratory muscle interaction.