منابع مشابه
Cardiovascular reflexes in Parkinsonism.
1. Cardiovascular reflex activity has been studied in thirty Parkinsonian patients, none of who had received levodopa or sympatholytic drugs. 2. Changes in blood pressure and pulse rate in response to Valsalva's manoeuvre and head-up tilt were investigated by intra-arterial recording. 3. Cardiovascular reflexfunction deteriorated with advancing age, but there was no correlation with either the ...
متن کاملReflexes that control cardiovascular function.
Realistically, most professional and general physiology courses will have only one or two lecture hours devoted to cardiovascular reflexes. Therefore, it is important to choose carefully the points you consider the most important and focus your lecture(s) to stress these points. In writing this article, I have tried to highlight the concepts that, in my opinion, are the most important. I have g...
متن کاملCardiovascular autonomic reflexes in brain infarction.
BACKGROUND AND PURPOSE Increased sympathetic activity is associated with cardiovascular complications in stroke, but the role of the parasympathetic nervous system has not been carefully outlined. In the present study our purpose was to assess quantitatively autonomic cardiovascular disturbances in brain infarction by measuring cardiovascular autonomic reflexes. METHODS We studied the autonom...
متن کاملCentral Serotonergic Control of Cardiovascular Reflexes
Central serotonergic neurones control reflex parasympathetic outflow to the heart, airways and bladder in a number of species, and different 5-HT receptor subtypes are involved in this effect. 5-HTja and 5 -HT3 receptors in the brainstem facilitate these reflexes, whilst 5-HTjb/id, 5-HT2 and 5 -HT4 receptors inhibit them. Recently, central 5 -HT7 receptors have been implicated in bladder reflex...
متن کاملAirway reflexes, autonomic function, and cardiovascular responses.
In this article, we review the cardiovascular responses to the inhalation of irritants and pollutants. Many sensory receptors in the respiratory system, from nose to alveoli, respond to these irritants and set up powerful reflex changes, including those in the cardiovascular system. Systemic hypotension or hypertension, pulmonary hypertension, bradycardia, tachycardia, and dysrhythmias have all...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1926
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1926.sp002290