Autonomic Failure

Autonomic Failure PDF Author: C. J. Mathias
Publisher: Oxford University Press, USA
ISBN: 9780192628510
Category : Medical
Languages : en
Pages : 562

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Book Description
This fourth edition of Autonomic Failure (now available in paperback) covers the many recent advances made in our understanding of the autonomic nervous system. There are 20 new chapters and extensive revisions of all other contributions. Autonomic failure, fourth edition makes diagnosis increasingly precise by fully evaluating the underlying anatomical and functional deficits, thereby allowing more effective treatment. This new edition continues to provide practitioners from a variety of fields, including neurology, cardiology, geriatric medicine, diabetology, and internal medicine, with a rational guide to aid in the recognition and management of autonomic disorders. The book starts with an updated classification of autonomic disorders and a history of the autonomic nervous system. The first two sections of the book deal with the fundamental aspects of autonomic structure, function, and integration. There are new chapters dealing with neurobiology, nerve growth factors, genetic mutations, neural and hormonal control of the cerebral circulation, innervation of the lung, and pathophysiological mechanisms causing nausea and vomiting. Advances in the clinical management of autonomic disorders are critically dependent on the bridge made between the basic and applied sciences.

Autonomic Failure

Autonomic Failure PDF Author: C. J. Mathias
Publisher: Oxford University Press, USA
ISBN: 9780192628510
Category : Medical
Languages : en
Pages : 562

Get Book Here

Book Description
This fourth edition of Autonomic Failure (now available in paperback) covers the many recent advances made in our understanding of the autonomic nervous system. There are 20 new chapters and extensive revisions of all other contributions. Autonomic failure, fourth edition makes diagnosis increasingly precise by fully evaluating the underlying anatomical and functional deficits, thereby allowing more effective treatment. This new edition continues to provide practitioners from a variety of fields, including neurology, cardiology, geriatric medicine, diabetology, and internal medicine, with a rational guide to aid in the recognition and management of autonomic disorders. The book starts with an updated classification of autonomic disorders and a history of the autonomic nervous system. The first two sections of the book deal with the fundamental aspects of autonomic structure, function, and integration. There are new chapters dealing with neurobiology, nerve growth factors, genetic mutations, neural and hormonal control of the cerebral circulation, innervation of the lung, and pathophysiological mechanisms causing nausea and vomiting. Advances in the clinical management of autonomic disorders are critically dependent on the bridge made between the basic and applied sciences.

Cardiovascular Regulation

Cardiovascular Regulation PDF Author: David Jordan
Publisher: Ashgate Publishing
ISBN: 9781855780248
Category : Medical
Languages : en
Pages : 159

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Book Description
The Studies in Physiology series provides a concise introduction to developments in complex areas of physiology for a wide audience. Published on behalf of the Physiology Society, Cardiovascular Regulation provides an up-to-date account of our current understanding of the control of the cardiovascular system that is not covered by existing textbooks. Both students and lecturers of cardiovascular and exercise physiology, medicine, dentistry and biomedical sciences will find this book informative and easy to read. Each chapter has numerous summary boxes. 'Essential reading' suggestions provide additional reading for undergraduates and the suggestions for 'Further reading' cover the subject to postgraduate level.

Regulation of Tissue Oxygenation, Second Edition

Regulation of Tissue Oxygenation, Second Edition PDF Author: Roland N. Pittman
Publisher: Biota Publishing
ISBN: 1615047212
Category : Medical
Languages : en
Pages : 117

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Book Description
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.

The Nervous System and the Heart

The Nervous System and the Heart PDF Author: Gert J. Ter Horst
Publisher: Springer Science & Business Media
ISBN:
Category : Medical
Languages : en
Pages : 592

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Book Description
There are physiological bases for associations of the heart with emotions, and with the apparently universal increased mortality in winter. Thirteen contributions integrate expertise in cardiology and neuroscience in overviewing the latest knowledge about head-heart interactions. The first five chapters explain autonomic control of cardiovascular functions, the neural supply of the heart, and neuropathology. Part II examines the effects of stress on the hypothalamo-pituitary-adrenal system and the heart. Part III treats the neurobiology and neuroimaging of cardiac pain. Next, humoral factors in cardiovascular regulation and as mediators of inflammation in coronary artery disease are considered. Finally, the relationship between heart disease and cognitive/neuropsychiatric disorders is discussed. Includes photomicrographs, schematic drawings, and nice large print.

Nervous Control of Cardiovascular Function

Nervous Control of Cardiovascular Function PDF Author: Walter C. Randall
Publisher: Oxford University Press, USA
ISBN:
Category : Medical
Languages : en
Pages : 504

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Book Description
Describing the functional neural regulation of the heart and circulation, this book illustrates recent research on the cardiac innervation, selective denervation, receptor mechanisms, and the neural mediation of cardiovascular reflexes. The pathways mediating cardiac pain, behavioural, and exercise inputs are also discussed in detail.

Anatomy and Physiology

Anatomy and Physiology PDF Author: J. Gordon Betts
Publisher:
ISBN: 9781947172807
Category :
Languages : en
Pages : 0

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Book Description


Control of Cardiac Output

Control of Cardiac Output PDF Author: David Young
Publisher: Biota Publishing
ISBN: 1615040226
Category : Medical
Languages : en
Pages : 110

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Book Description
Although cardiac output is measured as the flow of blood from the left ventricle into the aorta, the system that controls cardiac output includes many other components besides the heart itself. The heart’s rate of output cannot exceed the rate of venous return to it, and therefore, the factors governing venous return are primarily responsible for control of output from the heart. Venous return is affected by its pressure gradient and resistance to flow throughout the vascular system. The pressure gradient for venous return is a function of several factors including the blood volume flowing through the system, the unstressed vascular volume of the circulatory system, its capacitance, mean systemic pressure, and right atrial pressure. Resistance to venous return is the sum of total vascular resistance from the aortic valve to the right atrium. The sympathetic nervous system and vasoactive circulating hormones affect short-term resistance, whereas local tissue blood flow autoregulatory mechanisms are the dominant determinants of long-term resistance to venous return. The strength of contraction of the heart responds to changes in atrial pressure driven by changes in venous return, with small changes in atrial pressure eliciting large changes in strength of contraction, as described by the Frank–Starling mechanism. In addition, the autonomic nervous system input to the heart alters myocardial pumping ability in response to cardiovascular challenges. The function of the cardiovascular system is strongly affected by the operation of the renal sodium excretion–body fluid volume–arterial pressure negative feedback system that maintains arterial blood pressure at a controlled value over long periods. The intent of this volume is to integrate the basic knowledge of these cardiovascular system components into an understanding of cardiac output regulation. Table of Contents: Introduction / Venous Return / Cardiac Function / Integrated Analysis of Cardiac Output Control / Analysis of Cardiac Output Regulation by Computer Simulation / Analysis of Cardiac Output Control in Response to Challenges / Conclusion / References / Author Biography

Autonomic Innervation of the Heart

Autonomic Innervation of the Heart PDF Author: Riemer H.J.A. Slart
Publisher: Springer
ISBN: 3662450747
Category : Medical
Languages : en
Pages : 469

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Book Description
This book explains in detail the potential value of the hybrid modalities, SPECT-CT and PET-CT, in the imaging of cardiac innervation in a wide range of conditions and diseases, including ischemic heart disease, diabetes mellitus, heart failure, amyloidosis, heart transplantation, and ventricular arrhythmias. Imaging of the brain-heart axis in neurodegenerative disease and stress and of cardiotoxicity is also discussed. The roles of the various available tracers are fully considered, and individual chapters address radiopharmaceutical development under GMP, imaging physics, and kinetic modeling software. Highly relevant background information is included on the autonomic nervous system of the heart and its pathophysiology, and in addition future perspectives are discussed. Awareness of the importance of autonomic innervation of the heart for the optimal management of cardiac patients is growing, and there is an evident need for objective measurement techniques or imaging modalities. In this context, Autonomic Innervation of the Heart will be of wide interest to clinicians, researchers, and industry.

Autonomic Nervous Control of Cardiovascular Function During Prolonged Exercise in Humans

Autonomic Nervous Control of Cardiovascular Function During Prolonged Exercise in Humans PDF Author: Daniel W. White
Publisher:
ISBN:
Category :
Languages : en
Pages : 121

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Book Description
The importance of physical activity is well established as a means to maintain good health. However, under certain conditions and in some individuals, heavy exercise leads to catastrophic failure of the cardiovascular system. This is especially true during early recovery from exercise. This may be due in part to an improper response of the autonomic nervous system; that is, an imbalance of the sympathetic and parasympathetic nervous systems. The purpose of the investigations presented in this dissertation was to: i) re-evaluate the commonly accepted model of autonomic influence on control of heart rate during exercise; ii) study the effects of posture on recovery from heavy exercise; and iii) determine the effect of muscle pump activity on cardiorespiratory control of the cardiovascular system during the transition from active to inactive recovery following heavy dynamic two legged cycling. In the first investigation we examined previously reported and newly collected data and determined a fine balance exists between the sympathetic and parasympathetic nervous systems throughout all intensities of exercise. Our conclusions led to the development of a new model of autonomic balance during exercise. In the second investigation we concluded that unloading of the cardiopulmonary baroreceptors by upright posture significantly increases baroreflex control of heart rate during rest and during recovery from heavy dynamic leg cycling exercise. We also show that steady-state blood pressure and the baroreflex control of blood pressure is not significantly different based on orthostatic posture before or after exercise. In the third investigation we concluded that loading of the cardiopulmonary baroreceptors by muscle pump activity during active recovery from heavy exercise diminishes the respiratory induced changes in cardiovascular function observed during inactive recovery. Overall, these investigations highlight the importance of the autonomic nervous system during exercise and during recovery from heavy exercise. Collectively, these conclusions should influence the decision making process regarding mode of recovery from heavy exercise, especially in an "at risk" population, because recovery is the time when most adverse events take place.

Neural Control of Circulation

Neural Control of Circulation PDF Author: Maysie Hurnes
Publisher: Elsevier
ISBN: 0323160506
Category : Science
Languages : en
Pages : 188

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Book Description
Neural Control of Circulation presents an in-depth view of specialized areas in the neural regulation of the circulatory system that have been the subject of intensive research, the historical basis and theory from which those investigations evolved, and directions for future studies. Special emphasis is placed on critical evaluation of the experimental data in each field of research. This volume is comprised of seven chapters and begins with a synthesis of a large number of studies undertaken using conscious animals, particularly those that focuses on the behavioral and cerebral control of cardiovascular function. The second chapter explores the role of the brain stem and cerebellum in cardiovascular control. Next, specific research areas concerning bulbospinal control of sympathetic nerve discharge are discussed. This is followed by a chapter devoted to the nucleus tractus solitarii and experimental neurogenic hypertension. A concept in potential hypertensive mechanisms involving long-term transsynaptic regulation of adrenal medullary function is also described, and the neural control of the circulation during hypoxia is considered. Finally, aspects of central nervous system pharmacology and regulation of circulation are examined. This book is designed for individuals who are interested in the cardiovascular system and its function, and should also prove useful to students and researchers in physiology and individuals in other ancillary areas of bioscience.