Irritants are chemicals that stimulate mucus and fluid production in the body by promoting various actions like vasodilation, bronchoconstriction, and smooth muscle contraction.
Explanation:
Chemicals that can stimulate mucus and fluid production are called irritants. These chemicals promote vasodilation, bronchoconstriction, smooth muscle contraction, increased secretion, and mucus production. For example, substances that make coughing easier and enhance mucus and phlegm production are considered irritants.
