BIOS1170 Study Guide - Final Guide: Corticosteroid, Scalene Muscles, Carbonic Anhydrase

• School: University of Sydney
• Department: Biomedical Science
• Course: BIOS1170
• Professor: Professor

Document Summary

External movement of gas between the atmosphere and the lungs. Processes by which gas moves into the body & to the cells internal utilisation of oxygen by the cells. Easy to recognise what is wrong if there is an issue with the respiratory system. To supply oxygen needed for aerobic energy production and remove carbon dioxide (common functions) Endocrine function lung is responsible for some hormones and activation of some hormones. A single system which is divided up into parts. Conducting system series of passageways/tubes involved in gas movement for ventilation. Gas exchange system located in deepest part of lungs (very end of conducting system) Everything not in the deepest part of the lungs = part of conducting system. Concentration gradients govern the movement of gas through the system: Oxygen concentration (partial pressure) is highest in the atmosphere (ie. the inspired air), lowest in the cells carbon dioxide concentration is highest in the cells, lowest in the atmosphere.