[Role of irritant receptors in shortening expiration during collapse of the lungs].
In 24 vagotomized cats, firing rate of 44 irritant receptors was studied in lung collapse under conditions of pneumothorax or sucking off of air. The firing rate increased in 26 receptors in the latter condition. In pneumothorax the firing rate increased 1.5-2.7-fold as compared with sucking off of air. Discharges of the lung stretch receptors are practically similar in both conditions but the expiration increases more in pneumothorax due to a more intense activation of the irritant receptors. The data obtained suggest a major significance of the irritant receptors for expiration shortening in conditions of lung collapse.
D000200:Action Potentials; D000222:Adaptation, Physiological; D000818:Animals; D002415:Cats; D008168:Lung / Q000294:innervation*; D008465:Mechanoreceptors / Q000502:physiology*; D011030:Pneumothorax / Q000503:physiopathology; D001261:Pulmonary Atelectasis / Q000503:physiopathology*; D012119:Respiration; D013997:Time Factors; D014630:Vagus Nerve / Q000503:physiopathology*
O znachenii irritantnykh retseptorov v ukorochenii vykhoda pri spadenii legkikh.