r
Rubber
An elastic substance obtained from the latex of many tropical plants, especially Hevea braziliensis…
Respiratory zone
The portion of the respiratory system consisting of gas-exchange units called alveoli. Organized into…
Resting metabolic rate (RMR)
Amount of energy expended 2 hours post-absorption of a meal under conditions of rest…
Restrictive Disease
Pulmonary disease marked by pathophysiologic changes that limit the amount of lung inflation (e.g.,…
