Compliance curve of the lung is given below. What does Curve A signify?

Ans. C. EmphysemaCurve "A" has higher TLC and higher compliance than normal curve, which is typical of emphysema.Bronchitis may have high TLC (obstructive disease) but compliance generally remains normal or slightly higher than normal.* This is a compliance curve.* Left and up in the graph (A): Indicates increased compliance.* Right and down in the graph (B): Indicates reduced compliance.* Hence the answer is emphysema (increased compliance).* All the other disorders mentioned have reduced compliance.