Carotid chemoreceptor “resetting” revisited
نویسندگان
چکیده
منابع مشابه
Effects of carotid and aortic chemoreceptor denervation in newborn piglets.
The objective of the present study was to test the hypothesis that in neonatal piglets there would be no hypoventilation after sham denervation or aortic denervation (AOD) alone, but there would be transient hypoventilation after carotid body denervation (CBD) and the hypoventilation would be greatest after combined carotid and aortic denervation (CBD+AOD). There was a significant (P < 0.05) hy...
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1 The effects of intracarotid (i.c.) injections or infusions of adenosine on chemoreceptor activity recorded from the peripheral end of a sectioned carotid sinus nerve have been studied in cats anaesthetized with pentobarbitone. 2 Adenosine injections (0.1-100 micrograms) caused a rapid and marked increase of spontaneous chemoreceptor discharge, the intensity, duration and onset of which was do...
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The presence of two types of carotid sinus baroreceptors, as characterized by two different stimulus-response curves in an earlier study, suggests that each type may play a different role in the regulation of blood pressure. The discontinuous hyperbolic curve of the type I baroreceptors, marked by higher firing rates and greater sensitivity than the sigmoidal curve of type II baroreceptors, sug...
متن کاملChemical and electric transmission in the carotid body chemoreceptor complex.
Carotid body chemoreceptors are complex secondary receptors. There are chemical and electric connections between glomus cells (GC/GC) and between glomus cells and carotid nerve endings (GC/NE). Chemical secretion of glomus cells is accompanied by GC/GC uncoupling. Chemical GC/NE transmission is facilitated by concomitant electric coupling. Chronic hypoxia reduces GC/GC coupling but increases G/...
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ژورنال
عنوان ژورنال: Respiratory Physiology & Neurobiology
سال: 2013
ISSN: 1569-9048
DOI: 10.1016/j.resp.2012.09.002