Respiratory 2 Flashcards
Lung compliance
This is the ease at which the lungs can br inflated
Normal lung compliance
200 ml for every 1cmh2o increase in pressure
Poor lung compliance
Takes more pressure to move the same amount of air
Increased lung compliance
Takes less pressure to move or inflate and-has loss some elastic coil
Compliance is determined
Elastic properties, water content and surface tension
Compliance of the thoracic cage
Air way resistance
The air that move into and out of the lungs related to the pressure difference between the lungs and the atmosphere that you have a good
Airway resistance differs between
Large, medium and small airway
Airflow can be
Laminar or turbulent
Smooth muscle in the bronchiole
Allows themcyo change size and therefore resistance to flow
Action of thoracic cage during inspiration
The airways are pulled open during inspiration, whereas they become narrower as the lungs deflate during expiration
Functions of the respiratory system
Gas exchange Regulation of blood pH Production of chemical mediators Metabolism of circulating biologically active substances Sound production Providing olfactory sensations Protection
Gas exhchange
Primary function of the respiratory system
Regulation of blood ph
Controlling the amount of co2 in the blood, the respiratory system regulates blood pH
Production if chemical mediators
Production of angiotensin converting enzyme (ace)
Metabolism of circulating biologically active substances
Removal or degradation of substance whose affects need to be rapidly terminated ( now that theychave carries out their function)
