The cough reflex occurs when stimulation of cough receptors in the respiratory tract by dust or other foreign particles produces a cough, which causes rapidly moving air which usually remove the foreign material before it reaches the lungs.

Each cough occurs through the stimulation of a complex reflex arc. This is initiated by the irritation of cough receptors which are found in the trachea, main carina, branching points of large airways, and more distal smaller airways; also, they are present in the pharynx.

Cough is a natural defense mechanism that protects the respiratory tract from inhaling foreign bodies and by clearing excessive bronchial secretions. As a spontaneous reflex arc, it involves receptors, an afferent pathway, a center processing information, an …

The cough reflex is a vital defense mechanism that allows the body to expel inhaled foreign objects, potential pathogens, and endogenous secretions. Dysfunction of this reflex may be crudely dichotomized into hypo and hyper-activation.

2023年7月16日 · The cough reflex is an important defence mechanism which clears the airways of irritants by forcefully expelling air from the respiratory tract. This article will discuss the cough reflex arc, its phases and clinical correlations.

Coughing, like swallowing, belching, urinating, and defecating, is unique in that there is higher cortical control of this visceral reflex. 125 The cortical control of coughing can manifest both as inhibition (eg, coughing that is suppressed until a break in a live performance or activity) but also as voluntary cough. 125,126 The implications ...

2023年8月8日 · A cough is an innate primitive reflex and acts as part of the body’s immune system to protect against foreign materials. Coughing is associated with a wide assortment of clinical associations and etiologies. Furthermore, there are no objective tools to measure or clinically quantify a cough.

Cough is a complex physiological reflex that consists of a violent expiration to release secretions, foreign matter, overcome bronchospasm or relieve diseases of the airways and protect the respiratory system. 1,2 Cough receptors, located along the length of the airway from the larynx to the segmentary bronchi, are stimulated by chemical ...

2015年8月6日 · The cough reflex arc is mediated by mechanoreceptors and chemoreceptors in the airway and lung tissue. These are stimulated by inflammation, foreign material, and chemical stimuli. The sensors involved communicated with the nucleus tractus solitarius via vagal afferents.

Activation of C-fibre receptors in the airway releases sensory neuropeptides. These cause neurogenic inflammation and may activate rapidly adapting receptors to cause cough. The central connections of the C-fibre receptors inhibit cough.