Download or read book The Cerebral Circulation written by Marilyn J. Cipolla and published by Biota Publishing. This book was released on 2016-07-28 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: This e-book will review special features of the cerebral circulation and how they contribute to the physiology of the brain. It describes structural and functional properties of the cerebral circulation that are unique to the brain, an organ with high metabolic demands and the need for tight water and ion homeostasis. Autoregulation is pronounced in the brain, with myogenic, metabolic and neurogenic mechanisms contributing to maintain relatively constant blood flow during both increases and decreases in pressure. In addition, unlike peripheral organs where the majority of vascular resistance resides in small arteries and arterioles, large extracranial and intracranial arteries contribute significantly to vascular resistance in the brain. The prominent role of large arteries in cerebrovascular resistance helps maintain blood flow and protect downstream vessels during changes in perfusion pressure. The cerebral endothelium is also unique in that its barrier properties are in some way more like epithelium than endothelium in the periphery. The cerebral endothelium, known as the blood-brain barrier, has specialized tight junctions that do not allow ions to pass freely and has very low hydraulic conductivity and transcellular transport. This special configuration modifies Starling's forces in the brain microcirculation such that ions retained in the vascular lumen oppose water movement due to hydrostatic pressure. Tight water regulation is necessary in the brain because it has limited capacity for expansion within the skull. Increased intracranial pressure due to vasogenic edema can cause severe neurologic complications and death.
Download or read book The Physiological Mechanisms of Cerebral Blood Circulation written by Andreĭ Ivanovich Naumenko and published by . This book was released on 1970 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cerebral Blood Flow written by M.R. Pinsky and published by Springer Science & Business Media. This book was released on 2002 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers the most important aspects of cerebral blood flow (CBF) from bench to bedside. It first defines the basic physiology of CBF, those qualities that make it unique or are shared with other organs and their clinical implications. There follows a section on CBF pathophysiology that explores many of the known and proposed mechanisms of cerebral ischemia in stroke and trauma states. The third section describes the numerous and powerful means available to measure blood flow, tissue function and overall perfusion. These are essential measures if one is to assess the effectiveness of therapies aimed at preventing or reversing cerebral ischemia. The final section describes the interesting and often successful recent clinical trials aimed at preventing or reversing cerebral ischemia. This collection of multicenter trial data and their implications in one volume is unique in this field. This book addresses all the major aspects of CBF from basic issues to clinical practice.
Download or read book Problems in the Physiology of Intracranial Blood Circulation and Their Clinical Implications written by Alekseĭ Alekseevich Kedrov and published by . This book was released on 1963 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cerebral Blood Flow written by and published by Elsevier. This book was released on 1972-01-01 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Brain Research is the most acclaimed and accomplished series in neuroscience. The serial is well-established as an extensive documentation of contemporary advances in the field. The volumes contain authoritative reviews and original articles by invited specialists. The rigorous editing of the volumes assures that they will appeal to all laboratory and clinical brain research workers in the various disciplines: neuroanatomy, neurophysiology, neuropharmacology, neuroendocrinology, neuropathology, basic neurology, biological psychiatry and the behavioral sciences.
Download or read book The Physiological Mechanisms of Cerebral Blood Circulation written by Andreĭ Ivanovich Naumenko and published by . This book was released on 1970 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cerebral Blood Flow And Metabolism A Quantitative Approach written by Stephen John Payne and published by World Scientific. This book was released on 2017-10-06 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the way in which the human brain is supplied with blood and how the brain uses this to provide nutrients, primarily oxygen and glucose, to brain cells in order to maintain healthy brain function. In particular, it focuses on the quantitative nature of blood flow and metabolism. The book covers models of blood flow and metabolism and how these can be measured using a variety of imaging and non-imaging techniques. It also examines how cerebral blood flow is controlled in response to a wide variety of challenges and how it changes with normal physiological variation and in response to a large number of pathological conditions, including stroke and dementia.As the first substantial book for over ten years in a fast-changing field, it highlights how the subject has progressed in the last couple of decades. It tackles the subject in a quantitative way, underlining its importance in both technical and clinical fields. Audiences with a technical or clinical background, especially researchers and postgraduate students in biomedical engineering or medicine, will find this a valuable read.
Download or read book Cerebral Blood Flow written by James H. Wood and published by McGraw-Hill Companies. This book was released on 1987 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cerebral Blood Flow and Metabolism written by Alexander Murray Harper and published by Manchester University Press. This book was released on 1990 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: An outgrowth of a 1987 teaching seminar at the U. of Glasgow, designed to update physiologists--particularly those in teaching positions--on the recent developments in the relation of cerebral blood flow to metabolism. The five papers might also be useful directly to graduate medical students. Distributed in the US by St. Martin's Press. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Peptidergic Mechanisms in the Cerebral Circulation written by Lars Edvinsson and published by . This book was released on 1987 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arterial Behavior and Blood Circulation in the Brain written by Georgiĭ Iosifovich Mchedlishvili and published by . This book was released on 1986 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regulation of Coronary Blood Flow written by Michitoshi Inoue and published by Springer Science & Business Media. This book was released on 2013-11-09 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.
Download or read book Regulation of Tissue Oxygenation Second Edition written by Roland N. Pittman and published by Biota Publishing. This book was released on 2016-08-18 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.
Download or read book Basic Physiology for Anaesthetists written by David Chambers and published by Cambridge University Press. This book was released on 2019-07-25 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Easily understood, up-to-date and clinically relevant, this book provides junior anaesthetists with an essential physiology resource.
Download or read book Neurophysiological Basis of Cerebral Blood Flow Control written by Sima Mraovitch and published by John Libbey Eurotext. This book was released on 1996 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Established authorities in the field of cerebral circulation and metabolism, backed up by other neuroscientists, have prepared this in-depth textbook review of cerebral circulation and its control, together with the necessary background information in neuronanatomy, neurophysiology, neurochemistry, pharmacology and vascular physiology.
Download or read book Monitoring of Cerebral Blood Flow and Metabolism in Intensive Care written by Andreas Unterberg and published by Springer. This book was released on 2012-02-28 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until recently, monitoring of cerebral blood flow and metabolism was an unattained goal. Determination of cerebral blood flow was limited to intermittent measurements and particularly difficult to perform in critically ill patients. Meanwhile there are techniques available, however, to monitor cerebral blood flow and cerebral oxygenation, both globally and regionally. Therefore we thought it worthwhile to discuss these new continuous techniques and to compare them with well-known techniques which discontinuously measure CBF. For that purpose, an international workshop with some leading experts in the field was held in October 1992 in Berlin. The workshop consisted of about 20 lectures, either reviews on a special topic, or latest results. These contributions were given by invitation and were extensively discussed. Unfortunately it is impossible to reproduce the discussions. On the other hand, all speakers delivered a manuscript promptly after the meeting so that we were able to edit them within a short time. Since monitoring of cerebral blood flow in intensive care is a rapidly growing and changing topic, the written contributions should be quickly available. Authors, editors and publishers have tried to come close to this ideal. As editors we would like to thank the authors and the publishers who enabled us to come out with this volume of the proceedings as early as possible.
Download or read book The Physiology and Pharmacology of the Microcirculation written by Nicholas Mortillaro and published by Elsevier. This book was released on 2012-12-02 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Physiology and Pharmacology of the Microcirculation, Volume 1 discusses the biochemistry, metabolism, pharmacology, and physiology of the general microcirculation. This volume is organized into nine chapters that explore the microcirculation in several organ systems, such as brain, eye, heart, and kidney. The introductory chapters treat the biochemistry of isolated elements of the microvasculature, with special emphasis on the central nervous system. These chapters also explore the microvascular element and the vascular smooth muscle, focusing on their ultrastructural characteristics, innervation, and contraction-relaxation, and the effects of both endogenous and pharmacological vasoactive substances on vascular smooth muscle. The subsequent chapters deal with the exchange mode of the microcirculation; the mechanisms involved in the regulation of transcapillary fluid exchange; and the permeability of capillaries to small and large molecules in a variety of tissues. A discussion on the control mechanisms modulating microcirculatory dynamics is also included. The remaining four chapters are organized to deal with the microcirculation process in selected organs.
