Activity of the laryngeal abductor and adductor muscles during cough, expiration and aspiration reflexes in cats

Title:

Activity of the laryngeal abductor and adductor muscles during cough, expiration and aspiration reflexes in cats

Creator:

Ivan Poliaček, Stránsky, A., Ján Jakuš, Helena Baráni, Zoltán Tomori, and Erika Halašová

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:81452032-4a01-4c93-8979-b2aa7a41a75d
uuid:81452032-4a01-4c93-8979-b2aa7a41a75d
issn:0862-8408

Subject:

Fyziologie člověka a srovnávací fyziologie, kašel, kočky, cough, cats, laryngeal muscles, expiration and aspiration reflexes, electromyogram, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

We studied the temporal relationships and the patterns of electromyographic activities of the posterior cricoarytenoid and thyreoarytenoid muscles (laryngeal abductor and adductor), the diaphragm and abdominal muscles in anesthetized cats during mechanically induced tracheobronchial and laryngopharyngeal coughs, expiration and aspiration reflexes. The posterior cricoarytenoid muscle activity reached the maxima just before the peak of diaphragmatic activity in both types of cough and aspiration reflexes and slightly before the top of abdominal muscle activity in coughs and the expiration reflex. Thus, this muscle contributes to the inspiratory phase of coughs and aspiration reflex and also to the expulsive phase of coughs and the expiration reflex. The thyreoarytenoid muscle presented strong discharges in the compressive phase of coughs and expiration reflex (during the rising part of the abdominal muscle activity) and in the subsequent laryngoconstriction (following the diaphragmal and/or abdominal muscle activity) in all four reflexes. This muscle was also slightly activated at the beginning of the aspiration reflex. The existence of four phases of the cough reflex is also discussed., I. Poliaček, A. Stránsky, J. Jakuš, H. Baráni, Z. Tomori, E. Halašová., and Obsahuje bibliografii

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2003 Volume:52 | Number:6

Harvested from:

CDK

Metadata only:

false