Final answer:
Adrenaline causes bronchiole constriction by stimulating the sympathetic nervous system.
Step-by-step explanation:
Adrenaline causes bronchiole constriction by stimulating the sympathetic nervous system. This leads to the contraction of the muscular wall of the bronchioles, resulting in a decrease in their size. Bronchiole constriction can limit the flow of air and make breathing difficult.
For example, during times of stress or exercise, adrenaline is released, causing bronchiole constriction to redirect blood flow and enhance the body's response to the perceived threat or demand.