Factors Impacting Ventilation: Compliance, Resistance, Surface Tension

Compliance is the ease of which lungs are able to _______ and _______.

contract, expand

Increased ______ _______ in the alveoli would impede lung expansion—LOWERING compliance.

surface tension

Decreased _________ produced by Type II cells of the alveoli would also increase surface tension in the alveoli and LOWERING compliance.

surfactant

Damaged or scarred lung tissue would _____ compliance.

lower

High compliance—where lungs expand more than they should—occurs through damaged or altered ___________ tissue structure.

connective

Airway resistance is similar to blood flow resistance: as resistance increases flow _________, and as pressure increases flow __________

decreases, increases

In airways sympathetic activation __________ the radius of the airway and ___________ resistance.

increases, decreases

Parasympathetic stimulation by the release of acetylcholine produces __________ of airways and __________ resistance.

constriction, increases