Pharmacological modifications of sympathetic responses elicited by hypothalamic stimulation in the rat
نویسندگان
چکیده
منابع مشابه
Channeling of responses elicited by hypothalamic stimulation.
SCIENTIFIC discovery, like mining, often progresses on a discontinuous course. Progress in one direction continues until a point of diminishing returns is reached. A new strike may produce a scurry of activity in another direction. The development of different techniques may prompt the reopening of a closed shaft. Only after a period of such exploration may a more complete picture of the field ...
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Experiments were carried out in urethane-anesthetized, artificially ventilated, adult male Wistar rats. Microinjections (50 nL) of N-methyl-d-aspartic acid (1, 5, and 10 mmol/L), but not artificial cerebrospinal fluid, into the hypothalamic arcuate nucleus (ARCN) elicited increases in mean arterial pressure (5.7+/-0.5, 13.2+/-1.4, and 17.3+/-1.1 mm Hg, respectively) and heart rate (24.3+/-4.3, ...
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this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
Nervous System Cardiovascular Responses to Hypothalamic Arcuate Nucleus Stimulation in the Rat Role of Sympathetic and Vagal Efferents
Experiments were carried out in urethane-anesthetized, artificially ventilated, adult male Wistar rats. Microinjections (50 nL) of N-methyl-D-aspartic acid (1, 5, and 10 mmol/L), but not artificial cerebrospinal fluid, into the hypothalamic arcuate nucleus (ARCN) elicited increases in mean arterial pressure (5.7 0.5, 13.2 1.4, and 17.3 1.1 mm Hg, respectively) and heart rate (24.3 4.3, 49.3 5.2...
متن کاملNeural responses elicited by electrical stimulation of the retina.
PURPOSE To study electrically elicited responses (EERs) that are produced by epiretinal stimulation of normal and degenerated retina. METHODS Three biological models of retinal degeneration are compared: normal and rd1 mouse, normal and RCD1 dog, and human with retinitis pigmentosa. In mouse, epiretinal stimulation was accomplished by means of a wire inserted in the vitreous cavity, and singl...
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ژورنال
عنوان ژورنال: British Journal of Pharmacology
سال: 1968
ISSN: 0007-1188
DOI: 10.1111/j.1476-5381.1968.tb08482.x