The Central Nervous System Control Of Respiration

Respiration is one of the most basic motor activities crucial for survival of the individual. It is under total control of the central nervous system, which adjusts respiratory depth and frequency depending on the circumstances the individual finds itself. For this reason this volume not only reviews the basic control systems of respiration, located in the caudal brainstem, but also the higher brain regions, that change depth and frequency of respiration. Scientific knowledge of these systems is crucial for understanding the problems in the many patients suffering from respiratory failure. This well-established international series examines major areas of basic and clinical research within neuroscience, as well as emerging subfields

An innovative, organ-specific text that blends basic science with the fundamentals of clinical medicine Part of the Human Organ Systems series, Respiratory: An Integrated Approach skillfully bridges the gap between the science and practice of medicine. This beautifully illustrated book seamlessly integrates the core elements of cell biology, anatomy, physiology, pharmacology, and pathology with clinical medicine. It is the perfect companion for medical students transitioning to their clinical years, as well as for practicing physicians who need a user-friendly update on the basic science underlying the practice of clinical medicine. Features and highlights include: Detailed learning objectives clearly state learning goals Key concepts are emphasized in every chapter The latest developments in the field are incorporated throughout the text Numerous high-quality illustrations with detailed legends clarify important or difficult concepts Clinical Correlations highlight the clinical implications of basic science Each chapter is accompanied by an annotated bibliography to enhance the learning experience and provide an overview of the critical literature in the field End-of-chapter case-based questions with detailed explanations reinforce important concepts and assess understanding of the material A valuable Glossary of common phrases, terms, abbreviations, and acronyms

First published in 1997. The respiratory muscles are multifunctional muscles involved in other behaviors besides breathing -- from the protection of the upper airway to cognitive functions such as speech or singing. Neural Control of the Respiratory Muscles presents an overall consideration of how these muscles are regulated by the central nervous system in normal as well as in pathological situations. A group of 40 internationally recognized scientists and clinicians have collaborated to discuss current findings in the field and to identify areas of future development such as o The anatomical and functional organization of the respiratory muscles and the mechanics of the chest wall o Respiratory muscle control by the central nervous system during normal breathing and during disease states o Respiration during sleep, exercise, and locomotion o Respiratory muscle contribution to non-respiratory behaviors; interaction of the central pattern generator for respiration with other central pattern generators o Multifunctional nature of respiratory muscles and respiratory neurons of the central nervous system Although other texts exist that examine the control of breathing and other specialized topics considered in this volume, Neural Control of the Respiratory Muscles is the first major single-volume publication that takes a broad view of muscle control during non-respiratory behaviors and the coordination of respiration with non-respiratory behaviors.

This book presents the proceedings of a satellite symposium of the XXVllth International Congress of IUPS held in Berlin, July 12-15, 1977 the latest of a series of meetings dealing with the organization of the autonomic nervous system, especially its central nervous control (Warsaw 1971, Tokyo 1974, Heidelberg 1976). This was an occasion for the discussion of the rapidly increasing experience of laboratories and research groups in a number of countries. Interest is growing in the organization of the sympathetic and parasympathetic nerve supplies, and there is much new material derived largely from single unit re cordings within both central and peripheral nervous structures. It has long been known that various rhythms originating in central ner vous structures, including the respiratory rhythm, are reflected in autonomic outflows. Moreover, the autonomic responses themselves rarely appear in isolation, and are usually seen as part of patterns of change involving a number of organs and systems. These facts alone imply com plex interactions within the central nervous system, which indicate that studies of relationships between the relevant inputs, intrinsic central nervous activity and autonomic outputs constitute a special branch of neurophysiology which needs to be developed in order to gain insights into the forms of central nervous organization which are in volved.

The central nervous system, which includes the brain and spinal cord, has a high metabolic demand. The physiology of the brain is such that it is easily affected by alterations in other systems, which in turn can compromise cerebral blood flow and oxygenation. Together the brain and spinal cord control the automatic function of our body systems. While other systems of body controls individual functions, central nervous system at the same time does many different functions, especially, controlling the function of other systems. This interaction between the brain and other systems is important when it comes to understanding how injuries to the brain can, at times, produce complications in remote organs or systems of the body, such as the lungs. This book explains the lesser-known crosstalks between acutely or chronically affected brain and lung, describing the pathophysiology of the lung following brain injury and discussing in detail the conflicts between the brain and lungs in relation to the tidal volumes, positive end-expiratory pressures, arterial carbon dioxide and oxygen levels, recruitment maneuvers and positioning, as well as potential therapeutic targets.

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.