The relation between carotid body chemoreceptor discharge, carotid sinus pressure and carotid body venous flow
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چکیده
منابع مشابه
A preliminary anatomical study on carotid body of Makouei sheep
The carotid is a small mass of chemoreceptor's and sustentacular cells that detects changes in the composition of the arterial blood. The aim of the present study was to identify the size, color, location, blood and nerve supply of the carotid body in Makouei sheep. Fourteen heads of sheep from both sexes were collected from Urmia public slaughter-house. The exact situation and nerve supply of ...
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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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In this report of 20 patients with 24 carotid body tumors which is the largest series reported so far from Iran, we have evaluated the various characteristics of this relatively rare tumor in our population and compared our results with that of the literature. Although the prevalence of the tumor is cited to be equal among both sexes, we found a female to male ratio of 2.3 to I, as 14 of o...
متن کاملGeneral redox environment and carotid body chemoreceptor function.
Carotid body (CB) chemoreceptor cells detect physiological levels of hypoxia and generate a hyperventilation, homeostatic in nature, aimed to minimize the deleterious effects of hypoxia. Intimate mechanisms involved in oxygen sensing in chemoreceptor cells remain largely unknown, but reactive oxygen species (ROS) had been proposed as mediators of this process. We have determined glutathione lev...
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The respiratory system is subject to the aging process, which could limit its responsiveness to hyperventilatory stimuli. Attenuation of the ventilatory response to hypoxia in old age is, as yet, an unresolved issue. Such attenuation may be germane for the pathogenesis of respiratory disorders developing more often in elderly subjects. The aim of this study was to determine the potential advers...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1970
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1970.sp009108