👉 Receptors for airborne chemicals, often referred to as odorant receptors or irritant receptors, are specialized proteins located in the nasal epithelium and other parts of the respiratory tract that detect and respond to various fumes and pollutants. These receptors are part of the olfactory system but also play a role in detecting irritants and toxins. When these receptors bind to specific chemicals, such as volatile organic compounds (VOCs), gases, or particulate matter, they trigger a signaling cascade that can lead to physiological responses like coughing, sneezing, or inflammation. This mechanism helps protect the body by alerting individuals to potentially harmful environmental conditions, allowing them to take protective actions or avoid exposure. Different receptors are sensitive to different types of fumes, enabling the body to distinguish between various irritants and respond appropriately.
