Final answer:
Air blebs are small, weak areas in the lung tissue that can expand and rupture, leading to pneumothorax.
Step-by-step explanation:
Air blebs are small, weak areas in the lung tissue that can expand and rupture. They are typically found in individuals with certain lung conditions or risk factors, such as chronic obstructive pulmonary disease (COPD) or smoking.
Air blebs can form when the lung tissue weakens and becomes stretched, creating small pockets of air that can cause the lung to collapse in a condition known as pneumothorax.