TY - CHAP M1 - Book, Section TI - Respiratory Drugs A1 - Ciccone, Charles D. A1 - Bednarek, Melissa L. A1 - Miller, Kenneth L. PY - 2022 T2 - Pharmacology in Rehabilitation, 5e AB - The respiratory system is responsible for mediating gas exchange between the external environment and the bloodstream. The upper respiratory tract conducts air to the lower respiratory passages and ultimately to the lungs. It also humidifies and conditions inspired air and serves to protect the lungs from harmful substances. In the lungs, gas exchange takes place between the alveoli and the pulmonary circulation. SN - PB - F. A. Davis Company CY - New York, NY Y2 - 2024/10/10 UR - fadavisat.mhmedical.com/content.aspx?aid=1188529911 ER -