Cough

Cough is a vital physiological defensive reflex and common respiratory symptom that protects the tracheobronchial tree across pediatric and adult populations by clearing foreign materials, irritants, and excess secretions This triggers a coordinated efferent motor sequence consisting of a deep inspiratory phase, forceful expiratory muscle contraction against a closed glottis to generate high intrathoracic pressure, and a sudden glottic opening that produces high-velocity airflow to expel airway ...

Cough is a vital physiological defensive reflex and common respiratory symptom that protects the tracheobronchial tree across pediatric and adult populations by clearing foreign materials, irritants, and excess secretions Pathophysiologically, stimulation of chemical or mechanical sensory nerve receptors in the respiratory tract transmits signals via vagal afferent pathways to the medullary cough center This triggers a coordinated efferent motor sequence consisting of a deep inspiratory phase, f...

Clinically classified as acute, subacute, or chronic based on duration, cough can present as either dry or productive and may signify diverse underlying etiologies ranging from self-limited viral infections to chronic airway and inflammatory diseases

Clinically classified as acute, subacute, or chronic based on duration, cough can present as either dry or productive and may signify diverse underlying etiologies ranging from self-limited viral infections to chronic airway and inflammatory diseases