Results 211 to 220 of about 185,873 (266)
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Rheology of the Cerebral Circulation
Neurosurgery, 1984Current concepts of brain perfusion focus on the importance of rheological factors in the determination of cerebral blood flow. Blood viscosity, a primary determinant of blood flow, increases as the shear rate (velocity gradient) decreases, thereby impeding cerebral perfusion.
D B, Kee, J H, Wood
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The Control of the Cerebral Circulation
JAMA, 1961The cerebral circulation is broadly limited by factors extrinsic to the brain, namely the general arterial blood pressure and the cardiac output. The cerebral blood flow will be maintained until the cardiac output is decreased by more than a third or the blood pressure is lowered to half or less of the normal value.
H A, SHENKIN, P, NOVACK
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Cerebral Circulation and Resuscitation
Acta Anaesthesiologica Scandinavica, 1968SUMMARYAfter reviewing the literature mainly with a view to elucidate the effect of drugs commonly used in cardiac resuscitation on CBF, attention is drawn to the frequent occurrence of obstruction or stenosis in the extracranial cerebral vessels.
H, Keszler, A, Oppelt, K, Sliz, K, Vyska
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Ageing Research Reviews, 2016
Cerebral circulation is known to be protected by the regulatory function against the hypoperfusion that will affect the cognitive function as a result of brain ischemia and energy failure. The regulatory function includes cerebrovascular autoregulation, chemical control, metabolic control, and neurogenic control, and those compensatory mechanisms can ...
Ken, Nagata +6 more
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Cerebral circulation is known to be protected by the regulatory function against the hypoperfusion that will affect the cognitive function as a result of brain ischemia and energy failure. The regulatory function includes cerebrovascular autoregulation, chemical control, metabolic control, and neurogenic control, and those compensatory mechanisms can ...
Ken, Nagata +6 more
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Regulation of the Cerebral Circulation
Annual Review of Physiology, 1981This aspect of the regulation of the cerebral circulation has been under intensive investigation for the past several years. Many uncertainties have been clarified, but a satisfying answer to the important question of what role neurogenic influences play in the physiological regulation of cerebral blood flow (CBF) remains elusive.
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Cerebral Circulation Demystified
AACN Advanced Critical Care, 1991Basic anatomic and physiologic concepts related to cerebral circulation are summarized. The arterial blood supply is traced from its origins to the major divisions of anterior and posterior circulation. The circle of Willis, the major arterial vessels and territories, and the peculiarities of the cerebral venous circulation are discussed.
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The Speed of Cerebral Circulation
New England Journal of Medicine, 1962IN modern civilizations an enormous toll of suffering and death is exacted by local disorders of brain blood flow. Regional hemodynamic failure, with unique rapidity, produces anoxic devastation in cerebral tissue. The paralyzed neuronal function is reflected clinically as a stroke.
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Cerebral circulation and metabolism
Journal of Neurosurgery, 1984✓ Recent developments in the field of cerebral circulation and metabolism are reviewed, with emphasis on circulatory and metabolic events that have a bearing on brain damage incurred in ischemia. The first part of the treatise reviews aspects of cerebral metabolism that provide a link to the coupling of metabolism and blood flow, notably those that ...
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Pharmacological Control Of The Cerebral Circulation
Annual Review of Pharmacology and Toxicology, 1991This review is about control of a physiological variable; what that variable's function is and how it is regulated must be discussed first to establish a rational basis for its controL The reader is referred to some excellent recent reviews on regulation of cerebral blood flow (CBF)1 (1-3).
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Archives of Neurology & Psychiatry, 1933
In this series of investigations on cerebral circulation many of the data have been obtained by using a special method of measuring arteries in the pia through a cranial window. In order to interpret these findings correctly, it is necessary to recognize a number of factors which may affect the results. Aside from the one experimental factor— purposely
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In this series of investigations on cerebral circulation many of the data have been obtained by using a special method of measuring arteries in the pia through a cranial window. In order to interpret these findings correctly, it is necessary to recognize a number of factors which may affect the results. Aside from the one experimental factor— purposely
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