About Montrose Regional Health: As the leading healthcare in the Uncompahgre Valley, MRH offers patients personalized and professional healthcare backed by the latest technology experience, and partnership, we continue to evolve and broaden our comprehensive services in 23-specialties and sub- specialties. The pulmonary system, also sometimes called the respiratory system, consists of the lungs, trachea, bronchi, bronchioles, associated blood vessels, and all other components involved in and directly related to breathing and the process of respiration (gas exchange).