Skeletal Muscle Muscular Dystrophy PDF Download
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Author | : Donald Fischman |
Publisher | : Biota Publishing |
Total Pages | : 68 |
Release | : 2009-01-01 |
Genre | : Science |
ISBN | : 1615040048 |
Download Skeletal Muscle & Muscular Dystrophy Book in PDF, ePub and Kindle
Histologically, muscle is conveniently divided into two groups, striated and nonstriated, based on whether the cells exhibit cross-striations in the light microscope (Figure 3). Smooth muscle is involuntary: its contraction is controlled by the autonomic nervous system. Striated muscle includes both cardiac (involuntary) and skeletal (voluntary). The former is innervated by visceral efferent fibers of the autonomic nervous system, whereas the latter is innervated by somatic efferent fibers, most of which have their cell bodies in the ventral, motor horn of the spinal cord. Smooth muscle is designed to have slow, relatively sustained contractions, while striated muscle contracts rapidly and usually phasically. Both cardiac and smooth muscle cells are mononucleated, whereas skeletal muscle cells (fibers) are multinucleated. [In aging hearts or hypertrophied hearts, cardiac muscle cells are often binucleated.] Multinucleation of skeletal muscle arises during development by the cytoplasmic fusion of muscle precursor cells, myoblasts. Adult skeletal muscle cells do not divide; that is also true of most cardiac myocytes. However, skeletal muscle exhibits a considerable amount of regeneration after injury. This is because adult skeletal muscle contains a stem cell, the satellite cell, which lies beneath the basement membrane surrounding the muscle fibers. [The multinucleation of cardiac muscle arises from karyokinesis without cytokinesis.] A diagrammatic series of enlargements of skeletal muscle are shown in Figure 4. A bundle of muscle fibers (fasciculus) is cut from the deltoid muscle. Each muscle cell is termed a myofiber or muscle fiber. Each muscle fiber contains contractile organelles termed myofibrils, which contain the contractile units of muscle termed sarcomeres. The sarcomeres are composed of myofilaments, which in turn are composed of contractile proteins. Muscle connective tissue layers are organized in concentric layers that are important in the entry and exit of vessels and nerves to and from the tissue. These are shown in Figure 5. The outermost layer is the epimysium or muscle sheath. Connective tissue septae (perimysium) run radially into the muscle tissue, dividing it into muscle fascicles. The deepest layer, surrounding each of the muscle fibers is the endomysium. The endomysium is in direct contact with a basal lamina that ensheathes each muscle fiber. It surrounds the plasma membrane of the muscle fiber termed the sarcolemma.
Author | : Alan E. H. Emery |
Publisher | : |
Total Pages | : 338 |
Release | : 2001 |
Genre | : Medical |
ISBN | : |
Download The Muscular Dystrophies Book in PDF, ePub and Kindle
The muscular dystrophies are an important group of inherited disorders. They are characterized by muscle wasting and weakness, but vary considerably in their clinical manifestations and severity. This text reviews our understanding of the most important of these disorders. In many instances, the genes and protein products responsible for the dystrophies have been identified and it is now possible to establish a precise diagnosis, detect preclinical cases, identify carriers and offer prenatal dianostic testing. The book goes on to describe the opportunities for management of the symptoms through respiratory care, physiotherapy and surgical correction of contracture, and examines the potential, in the future, for effective treatment utilizing the new techniques of gene and cell therapy. Professor Emery has invited chapters from the leading international experts in the field providing a unique insight into the current situation and the hopes for the future.
Author | : George Karpati |
Publisher | : Cambridge University Press |
Total Pages | : 800 |
Release | : 2001-07-12 |
Genre | : Medical |
ISBN | : 9780521650625 |
Download Disorders of Voluntary Muscle Book in PDF, ePub and Kindle
Rewritten and redesigned, this remains the one essential text on the diseases of skeletal muscle.
Author | : Andreas Rummel |
Publisher | : Springer |
Total Pages | : 0 |
Release | : 2015-01-29 |
Genre | : Medical |
ISBN | : 9783642448898 |
Download Botulinum Neurotoxins Book in PDF, ePub and Kindle
The extremely potent substance botulinum neurotoxin (BoNT) has attracted much interest in diverse fields. Originally identified as cause for the rare but deadly disease botulism, military and terrorist intended to misuse this sophisticated molecule as biological weapon. This caused its classification as select agent category A by the Centers for Diseases Control and Prevention and the listing in the Biological and Toxin Weapons Convention. Later, the civilian use of BoNT as long acting peripheral muscle relaxant has turned this molecule into an indispensable pharmaceutical world wide with annual revenues >$1.5 billion. Also basic scientists value the botulinum neurotoxin as molecular tool for dissecting mechanisms of exocytosis. This book will cover the most recent molecular details of botulinum neurotoxin, its mechanism of action as well as its detection and application.
Author | : Ronald J. Korthuis |
Publisher | : Morgan & Claypool Publishers |
Total Pages | : 147 |
Release | : 2011 |
Genre | : Medical |
ISBN | : 1615041834 |
Download Skeletal Muscle Circulation Book in PDF, ePub and Kindle
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
Author | : Bruce Alberts |
Publisher | : |
Total Pages | : 0 |
Release | : 2002 |
Genre | : Cytology |
ISBN | : 9780815332183 |
Download Molecular Biology of The Cell Book in PDF, ePub and Kindle
Author | : Frank L. Mastaglia |
Publisher | : W.B. Saunders Company |
Total Pages | : 830 |
Release | : 1992 |
Genre | : Medical |
ISBN | : |
Download Skeletal Muscle Pathology Book in PDF, ePub and Kindle
Aimed at the diagnostic pathologist and neurologist, this text is organized by disease, with introductory chapters on morphology, immunology, pathogenesis and biopsy technique. The second edition includes information on pathogenesis of muscle disease.
Author | : Victor R. Preedy |
Publisher | : Cambridge University Press |
Total Pages | : 762 |
Release | : 2002-01-04 |
Genre | : Medical |
ISBN | : 9781841100296 |
Download Skeletal Muscle Book in PDF, ePub and Kindle
Metabolic and functional impairments in skeletal muscle occur frequently, often in diverse conditions and each with different aetiologies, methods of diagnosis and treatment. This comprehensive text brings the complex facets of skeletal muscle pathology, diagnosis and management together.
Author | : Alexander Mauro |
Publisher | : Raven Press (ID) |
Total Pages | : 582 |
Release | : 1979 |
Genre | : Medical |
ISBN | : |
Download Muscle Regeneration Book in PDF, ePub and Kindle
Author | : Balan Louis Gaspar |
Publisher | : Springer |
Total Pages | : 299 |
Release | : 2018-09-24 |
Genre | : Medical |
ISBN | : 9811314624 |
Download Myopathology Book in PDF, ePub and Kindle
This book covers all aspects of basic, essential, recent advances and controversies in myopathology. The major emphasis is on diagnostic myopathology of muscular dystrophies, inflammatory myopathies, mitochondrial myopathies, metabolic myopathies, congenital myopathies, myopathies of miscellaneous etiology, neurogenic and neuromuscular junction disorders, the goal being to broaden readers’ understanding of individual disease subgroups. The book also contains all the essential details needed to establish a neuromuscular lab, making it especially relevant for laboratory technical staff and research scholars.