TY - CHAP M1 - Book, Section TI - Chapter 4. Introduction to Autonomic Pharmacology A1 - Panus, Peter C. A1 - Jobst, Erin E. A1 - Masters, Susan B. A1 - Katzung, Bertram A1 - Tinsley, Suzanne L. A1 - Trevor, Anthony J. PY - 2009 T2 - Pharmacology for the Physical Therapist AB - The motor (efferent) portion of the nervous system can be divided into two major subdivisions: autonomic and somatic. The autonomic nervous system (ANS) is largely autonomous (independent) in that its activities are not under direct conscious control. The ANS is concerned primarily with visceral functions that are necessary for life. The somatic system is largely concerned with consciously controlled functions such as movement and posture. Both systems have important afferent (sensory) inputs that provide sensation and modify motor output through reflex arcs of varying size and complexity. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/18 UR - accessphysiotherapy.mhmedical.com/content.aspx?aid=6090394 ER -