Coughing is an important physiological function present in many mammalian species to remove or expel harmful substances, such as foreign bodies, mucus, or debris, from the airways and preserve the normal health of the respiratory tract. Cough can be evoked by stimulation of coughing receptors localized in the larynx, trachea, or bronchi, whereas irritation of smaller bronchi, bronchioles, and alveoli does not elicit coughing. Furthermore, the luminal flow in the lower respiratory tract would be too low to generate sufficient shear forces to clear airway mucus and debris from such sites.
Categorised in: Cardiología
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