Peripheral Sensory Nerve Receptors in the Respiratory Tract (PSNRRT)

Peripheral sensory nerve receptors in the respiratory tract are specialized nerve endings that detect mechanical, chemical, and inflammatory stimuli within the airways and lungs. These receptors play a crucial role in regulating breathing patterns, initiating protective reflexes (such as cough and bronchoconstriction), and maintaining airway homeostasis. Key types include Slowly Adapting Stretch Receptors (SARs), Rapidly Adapting Receptors (RARs), Nociceptors (C Fibers), and specialized mucosal touch/acid-sensitive A Fibers. They express various molecular receptors such as Purinergic P2X3 receptors and Transient Receptor Potential (TRP) channels. Their activation leads to reflex changes in breathing pattern, bronchomotor tone adjustments, airway mucus secretion, and initiation of protective responses.

Other names

Airway Sensory ReceptorsPulmonary Sensory ReceptorsRespiratory Sensory Neurons