Baroreceptor reflexes in new-born rabbits
نویسندگان
چکیده
منابع مشابه
Baroreceptor reflexes in postural control of circulation in rabbits.
The present study was undertaken to evaluate reflex cardiovascular responses to postural stress in rabbits. The changes in mean arterial pressure (MAP) and heart rate (HR) were monitored in the supine position and following sudden passive head up tilt (HUT), and head down tilt (HDT) to 70 degrees. The results show a significant increase in MAP (18.57%, P less than 0.001) and HR (2.92%, P less t...
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We studied the control of arterial pressure by the carotid sinus baroreceptors in 35 hypertensive humans, using a variable pressure neck chamber to alter carotid sinus transmural pressure in a graded fashion. The results were compared with those obtained from 11 normotensives. As in normotensives, reduction in carotid transmural pressure caused a linearly related pressor response and vice versa...
متن کاملHypothalamic control of baroreceptor reflexes.
GEBBER, GERARD L,, AND DAVID 's/v. SNYDER. Hypothalamic confrol of the barorecepfor reflexes. Am. J. Physiol. 2 18 ( 1) : 12+ 13 I . 1969.-The elect of hypothalamic stimulation was studied on the cardiac and vascular efferent components of the baroreceptor reflexes. Bradycardia evoked by carotid sinus nerve stimulation or norepinephrine was blocked by hypothalamic stimulation in spinal cats. Th...
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Data in animals indicate that large amounts of digitalis potentiate arterial baroreflexes and that this factor may be important for the cardiovascular effects of the drug. To determine if arterial baroreflex potentiation also exists after administration of therapeutic doses of digitalis in man, we studied how stimulation and deactivation of arterial baroreceptors by phenylephrine and nitroglyce...
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The putative transmitters, enkephalins and substance P, and their binding sites have been identified in the nucleus of the solitary tract. Their role in the modulation of baroreceptor reflex activity is the subject of this study in the rabbit. A stable decarboxy analog of leu-enkephalin, RX 783016, which has mu receptor specificity, was used to attenuate the baroreflex sensitivity to intravenou...
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ژورنال
عنوان ژورنال: The Journal of Physiology
سال: 1960
ISSN: 0022-3751
DOI: 10.1113/jphysiol.1960.sp006382