baroreceptor

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  • noun

Words related to baroreceptor

a sensory receptor that responds to pressure

References in periodicals archive ?
Baroreceptor reflex stimulation was evaluated by RR interval using the Valsalva maneuver.
The MobiusHD implant is designed to amplify the signals received by the surrounding arterial baroreceptors, and thereby amplify the body's natural response to lower blood pressure through vasodilation.
However, this study did not measure HR response to blood pressure ramps ([DELTA]HR/[DELTA]MAP), so it is uncertain if local application of SOD or catalase to the carotid baroreceptors would have had an appreciable effect on the baroreflex control of heart rate.
sup][12] Hypertension usually peaks in the first few hours after surgery and is related to impaired baroreceptor function.
The patient's sympathetic nervous system responded to inadequate blood supply, with baroreceptors in the arteries detecting the low pressure, causing the adrenal glands to release adrenaline and noradrenaline.
3,32,33) This proposition is based on the finding that denervation of arterial baroreceptors caused decrease in dopamine content and in the activity of dopamine biosynthetic enzyme tyrosine hydroxylase in the striatum part of the VTA.
The patient's sympathetic nervous system responded to inadequate blood supply by her baroreceptors in the arteries, detecting the low pressure, and causing the adrenal glands to release adrenaline and noradrenaline.
With the use of existing experimental data of the aging human aorta, the researchers were also able to find how the stiffening of the aorta with age causes the baroreceptors to misinform the central nervous system about blood pressure.
They are believed to arise from pericytes of Zimmermann, which are baroreceptors found on blood vessel walls.
The authors concluded that arterial baroreceptors play a major role in long-term control of MAP under the conditions of a HNa diet.
24] Heart rate varies with respiration (sinus arrhythmia), increasing during inspiration and decreasing during expiration mainly due to the parasympathetic innervation of the heart, the pulmonary stretch receptors, cardiac mechanoreceptors and baroreceptors.
During this two suggested probable mechanisms for this sympatho-vagal imbalance: Chronic nicotine (tobacco) abuse leads to a restricted sensitivity of the afferent baroreceptors or directly restricts the baroreflex-centers in the brain stem [7].
The arterial hypertension stimulates the carotid baroreceptors, and the sinus rate is reflexly slowed, which in this patient allowed the junctional escape rhythm to emerge.
Beware and monitor closely any elderly patients who are on antihypertensives as the physiology of ageing interferes with the drugs, for example, decreased clearance of drugs from the kidney or liver, decreased sensitivity to baroreceptors (postural hypotension), chronic sodium retention and reduced cardiac reserve.
Raisoed blood pressure is sensed by baroreceptors in the aortic arch and carotid bodies.