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The cough reflex occurs when stimulation of cough receptors in the respiratory tract by ... The abdominal muscles contract to accentuate the action of the relaxing ...
A cough is a sudden expulsion of air through the large breathing passages which can help clear them of fluids, irritants, foreign particles and microbes.As a protective reflex, coughing can be repetitive with the cough reflex following three phases: an inhalation, a forced exhalation against a closed glottis, and a violent release of air from the lungs following opening of the glottis, usually ...
Coronary reflex; Cough reflex — a rapid expulsion of air from the lungs after sudden opening of the glottis, and usually following irritation of the trachea. Cremasteric reflex — elevation of the scrotum and testis elicited by stroking of the superior and medial part of the thigh.
The cough center is a region of the brain which controls coughing. The cough center is located in the medulla oblongata in the brainstem . Cough suppressants focus their action on the cough center.
In biology, a reflex, or reflex action, is an involuntary, unplanned sequence or action [1] and nearly instantaneous response to a stimulus. [2] [3] The simplest reflex is initiated by a stimulus, which activates an afferent nerve. The signal is then passed to a response neuron, which generates a response.
Reflexogenous (reflexogenic) zone (or the receptive field of a reflex) is the area of the body stimulation of which causes a definite unconditioned reflex. [1]: vol. II, p. 103 For example, stimulation of the mucosa of the nasopharynx elicits a sneezing reflex, and stimulation of the tracheae and bronchi elicits a coughing reflex. [2]
The other clearance mechanism is provided by the cough reflex. [2] Mucociliary clearance has a major role in pulmonary hygiene . MCC effectiveness relies on the correct properties of the airway surface liquid produced, both of the periciliary sol layer and the overlying mucus gel layer , and of the number and quality of the cilia present in the ...
It limits the burst of action potentials in the phrenic nerve, effectively decreasing the tidal volume and regulating the respiratory rate. Absence of the center results in an increase in depth of respiration and a decrease in respiratory rate. The pneumotaxic center regulates the amount of air that can be taken into the body in each breath.