The Structure And Function Of Muscle Physiology And Biochemistry

The papers in this volume were contributed by close friends, co-workers and pupils of Professor Setsuro Ebashi. They are dedicated to him to commemorate his great and pioneering contribution to the advancement of muscle physiology and biochemistry, which, in time, exerted a great influence on the whole field of life science. We believe that this issue reveals the present state of research on muscle and/or calcium that was opened up by Professor Ebashi.

Provides readers with a detailed understanding of the different facets of muscle physiology. Examines motoneuron and muscle structure and function. It is intended for those need to know about skeletal muscle--from undergraduate and graduate students gaining advanced knowledge in kinesiology to physiotherapists, physiatrists, and other professionals whose work demands understanding of muscle form and function.

The aim of this treatise is to summarize the current understanding of the mechanisms for blood flow control to skeletal muscle under resting conditions, how perfusion is elevated (exercise hyperemia) to meet the increased demand for oxygen and other substrates during exercise, mechanisms underlying the beneficial effects of regular physical activity on cardiovascular health, the regulation of transcapillary fluid filtration and protein flux across the microvascular exchange vessels, and the role of changes in the skeletal muscle circulation in pathologic states. Skeletal muscle is unique among organs in that its blood flow can change over a remarkably large range. Compared to blood flow at rest, muscle blood flow can increase by more than 20-fold on average during intense exercise, while perfusion of certain individual white muscles or portions of those muscles can increase by as much as 80-fold. This is compared to maximal increases of 4- to 6-fold in the coronary circulation during exercise. These increases in muscle perfusion are required to meet the enormous demands for oxygen and nutrients by the active muscles. Because of its large mass and the fact that skeletal muscles receive 25% of the cardiac output at rest, sympathetically mediated vasoconstriction in vessels supplying this tissue allows central hemodynamic variables (e.g., blood pressure) to be spared during stresses such as hypovolemic shock. Sympathetic vasoconstriction in skeletal muscle in such pathologic conditions also effectively shunts blood flow away from muscles to tissues that are more sensitive to reductions in their blood supply that might otherwise occur. Again, because of its large mass and percentage of cardiac output directed to skeletal muscle, alterations in blood vessel structure and function with chronic disease (e.g., hypertension) contribute significantly to the pathology of such disorders. Alterations in skeletal muscle vascular resistance and/or in the exchange properties of this vascular bed also modify transcapillary fluid filtration and solute movement across the microvascular barrier to influence muscle function and contribute to disease pathology. Finally, it is clear that exercise training induces an adaptive transformation to a protected phenotype in the vasculature supplying skeletal muscle and other tissues to promote overall cardiovascular health. Table of Contents: Introduction / Anatomy of Skeletal Muscle and Its Vascular Supply / Regulation of Vascular Tone in Skeletal Muscle / Exercise Hyperemia and Regulation of Tissue Oxygenation During Muscular Activity / Microvascular Fluid and Solute Exchange in Skeletal Muscle / Skeletal Muscle Circulation in Aging and Disease States: Protective Effects of Exercise / References

The Structure and Function of Muscle, Second Edition, Volume III: Physiology and Biochemistry presents the physiology and biochemistry of muscle. This book discusses the various aspects of the structure of muscles and explores some aspects of muscle disease. Organized into 10 chapters, this edition begins with an overview of the transverse tubular system or T system of striated muscle. This text then examines the properties and function of membranes through electron microscopy. Other chapters consider in more detail from a biophysical viewpoint certain aspects of the series of events surrounding muscle contraction. This book discusses as well the significance of the central circulation and the amount of oxygen that can be delivered by the cardiovascular system. The final chapter deals with the heat output and chemical breakdown during an isometric twitch. This book is a valuable resource for scientists, neurobiologists, biologists, biochemists, physiologists, histologists, cytologists, and research workers.

In its Second Edition, this text addresses basic and applied physiological properties of skeletal muscle in the context of the physiological effects from clinical treatment. Many concepts are expanded and recent studies on human muscle have been added. This new edition also includes more clinically relevant cases and stories. A two-page full color insert of muscle sections is provided to ensure integral understanding of the concepts presented in the text. Anyone interested in human movement analysis and the understanding of generation and control from the musculoskeletal and neuromuscular systems in implementing movement will find this a valuable resource.

Muscle and Meat Biochemistry teaches the different concepts and topics under the eponymous subject. The book covers the gross and detailed composition and structure of muscles and the relationship of the nervous system with the muscular system; muscle cell differentiation and growth; proteins of the thick filament; and the molecular structure and enzymatic activity of myosin. The text also discusses the proteins found in the thin filament - actin, troponin, and myosin; skeletal muscle growth; protein metabolism; and fiber types. The book also encompasses cardiac and smooth muscle; sarcoplasmic proteins; the connective tissues - collagen, elastin, and ground substance; and the postmortem changes during conversion of muscle to meat. The text is recommended for advanced undergraduate and graduate students, as well as for scientists who would like to know more about muscle biology, muscle physiology, and meat science.

This lively book examines recent trends in animal product consumption and diet; reviews industry efforts, policies, and programs aimed at improving the nutritional attributes of animal products; and offers suggestions for further research. In addition, the volume reviews dietary and health recommendations from major health organizations and notes specific target levels for nutrients.

The Structure and Function of Muscle, Second Edition: Volume II: Structure, Part 2 deals with various aspects of muscle structure, including physiology and microanatomy. The structure of the motor end plate is discussed, together with muscle regeneration and postmortem changes in muscle. Membranous systems in muscle fibers as well as the ultrastructural and physiological aspects of heart muscle are also considered. This volume is comprised of nine chapters and begins with an overview of how basic studies in uterine function and regulation promoted developments in reproduction, obstetrics, and regulatory biology, with emphasis on the basic mechanism of function and regulation of smooth muscles. The following chapters explore the capacitative, resistive, and syncytial properties of heart muscle; contractile structures in some Protozoa such as ciliates and gregarines; the microanatomy of smooth muscle, cardiac muscle, and voluntary, somatic, or skeletal muscle; postmortem changes in the physical characteristics of muscle; and morphology of spontaneous degeneration and regeneration in skeletal muscle. The morphology, ultrastructure, and cytochemistry of the muscle spindle are also outlined. The final chapter deals with membraneous systems in muscle fibers and includes a discussion on correlation between physiology and morphology of fiber types in vertebrates and invertebrates. This book will be a useful resource for students, researchers, and practitioners of anatomy, physiology, biology, and medicine.