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Author: G.D. Das Publisher: Springer Science & Business Media ISBN: 3642866549 Category : Science Languages : en Pages : 60
Book Description
The presence of nerve cells in the white matter of the spinal cord and in the spinal and cranial nerves has attracted the attention of some researchers in the past. Because of their location in such unexpected regions, these neurons provided a rich field of speculation regarding their nature and function. This was partic ularly true about the nerve cells lying in the spinal white matter. From phylogenetic considerations, neurons in the spinal white matter are present more abundantly in amphibians, reptiles and brids than in mammals. A. brief survey of literature on lower vertebrates indicates that GASKELL (1885, 1889) was the first to describe the displaced neurons in the white matter of the spinal cord of alligators and various species of birds. In his consideration they were displaced ganglion cells. In 1902 von KOELLIKER gave an exhaustive account of such neurons in the white matter of the spinal cord of reptiles and birds. In these animals he observed clusters of such neurons running in longitudinal columns and thus was able to group them into nuclei known as "Hofmann's nuclei". Further, he suggested that these nuclei arise from the mass of the ventral horn and that they may give rise t. o preganglionic fibers, motor fibers or ventral commissural fibers. In t. he ensuing years investigation of these nuclei was extended by STREE TER, KRAUSE, TERNI, HUBER and others (quoted from ARIENS KAPPERS et. aI. , 1960, Vol. I, p. 206-210).
Author: G.D. Das Publisher: Springer Science & Business Media ISBN: 3642866549 Category : Science Languages : en Pages : 60
Book Description
The presence of nerve cells in the white matter of the spinal cord and in the spinal and cranial nerves has attracted the attention of some researchers in the past. Because of their location in such unexpected regions, these neurons provided a rich field of speculation regarding their nature and function. This was partic ularly true about the nerve cells lying in the spinal white matter. From phylogenetic considerations, neurons in the spinal white matter are present more abundantly in amphibians, reptiles and brids than in mammals. A. brief survey of literature on lower vertebrates indicates that GASKELL (1885, 1889) was the first to describe the displaced neurons in the white matter of the spinal cord of alligators and various species of birds. In his consideration they were displaced ganglion cells. In 1902 von KOELLIKER gave an exhaustive account of such neurons in the white matter of the spinal cord of reptiles and birds. In these animals he observed clusters of such neurons running in longitudinal columns and thus was able to group them into nuclei known as "Hofmann's nuclei". Further, he suggested that these nuclei arise from the mass of the ventral horn and that they may give rise t. o preganglionic fibers, motor fibers or ventral commissural fibers. In t. he ensuing years investigation of these nuclei was extended by STREE TER, KRAUSE, TERNI, HUBER and others (quoted from ARIENS KAPPERS et. aI. , 1960, Vol. I, p. 206-210).
Author: Marilyn J. Cipolla Publisher: Biota Publishing ISBN: 1615047239 Category : Medical Languages : en Pages : 82
Book Description
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.
Author: Juerg Hodler Publisher: Springer Nature ISBN: 303038490X Category : Medical Languages : en Pages : 252
Book Description
This open access book offers an essential overview of brain, head and neck, and spine imaging. Over the last few years, there have been considerable advances in this area, driven by both clinical and technological developments. Written by leading international experts and teachers, the chapters are disease-oriented and cover all relevant imaging modalities, with a focus on magnetic resonance imaging and computed tomography. The book also includes a synopsis of pediatric imaging. IDKD books are rewritten (not merely updated) every four years, which means they offer a comprehensive review of the state-of-the-art in imaging. The book is clearly structured and features learning objectives, abstracts, subheadings, tables and take-home points, supported by design elements to help readers navigate the text. It will particularly appeal to general radiologists, radiology residents, and interventional radiologists who want to update their diagnostic expertise, as well as clinicians from other specialties who are interested in imaging for their patient care.
Author: Grant Maxie Publisher: Elsevier Health Sciences ISBN: 070206842X Category : Medical Languages : en Pages : 1250
Book Description
With an emphasis on the disease conditions of dogs, cats, horses, swine, cattle and small ruminants, Jubb, Kennedy, and Palmer's Pathology of Domestic Animals, 6th Edition continues its long tradition of being the most comprehensive reference book on common domestic mammal pathology. Using a body systems approach, veterinary pathology experts provide overviews of general system characteristics, reactions to insult, and disease conditions that are broken down by type of infectious or toxic insult affecting the anatomical subdivisions of each body system. The sixth edition now boasts a new full-color design, including more than 2,000 high-resolution images of normal and abnormal organs, tissues, and cells. Updated content also includes evolved coverage of disease agents such as the Schmallenberg virus, porcine epidemic diarrhea virus, and the porcine deltacoronavirus; plus new information on molecular-based testing, including polymerase chain reaction (PCR) and in-situ hybridization, keep you abreast of the latest diagnostic capabilities. - Updated content includes new and evolving pathogens and diagnostic techniques. - Updated bibliographies give readers new entry points into the rapidly expanding literature on each subject. - NEW! High-resolution color images clearly depict the diagnostic features of hundreds of conditions. - NEW! Introduction to the Diagnostic Process chapter illustrates the whole animal perspective and details the approaches to systemic, multi-system, and polymicrobial disease. - NEW! Coverage of camelids is now included in the reference's widened scope of species. - NEW! Team of 30+ expert contributors offers the latest perspective on the continuum of issues in veterinary pathology. - NEW! Expanded resources on the companion website include a variety of helpful tools such as full reference lists with entries linked to abstracts in Pub Med and bonus web-only figures. - NEW! Full-color design improves the accessibility of the text.
Author: S.H. Fatemi Publisher: Springer Science & Business Media ISBN: 0387767614 Category : Medical Languages : en Pages : 473
Book Description
Reelin glycoprotein is a serine protease with important roles in embryogenesis and during adult life. This comprehensive and integrative book examines the role that reelin plays in the etiology of various neuropsychiatric disorders, including schizophrenia and autism. The book provides an unprecedented analysis of this emerging and novel protein by examining evidence from genetic, neuroanatomic, biochemical, and behavioral studies.
Author: Francoise Gray Publisher: Oxford University Press ISBN: 0199330484 Category : Medical Languages : en Pages : 421
Book Description
Now in its 5th edition, Escourolle & Poirier Manual of Basic Neuropathology continues the tradition of being one of the most respected texts in neuropathology by providing an introduction to the various diseases of the nervous system and their underlying pathology. This thorough, yet concise manual covers the full spectrum of the various categories of neurologic disease, including neoplasia, trauma, vascular disease, and infection, with separate chapters on prion diseases, multiple sclerosis, degenerative disorders, acquired metabolic diseases, hereditary metabolic diseases, congenital malformations, perinatal diseases, skeletal muscle, peripheral nerve, and the pituitary gland. To accurately guide the clinician, the most current techniques in neuropathology are covered in their own chapter at the end of the book. Richly illustrated throughout, with over 700 images of various neuropathogical diagnoses such as tumor, stroke, infection, degeneration, and malformation among others, this new edition of the classic monograph is an easy-to-use manual for any student, researcher, or practitioner seeking basic information on neuropathology. Used for decades in all fields related to the nervous system-including neurology, neurosurgery, psychiatry, neuroradiology, neuroendocrinology, neuropathology, pathology, and neuroscience- Escourolle & Poirier Manual of Basic Neuropathology is regarded at the 'bible' of neuropathology. This new version has been completely rewritten and expanded to include important updates in genetics and molecular biology, reflective of the important neuropathological discoveries in those fields over the past decade.This book is a practical diagnostic tool and necessary reading for anyone encountering pathological conditions of the nervous system.
Author: George G. Somjen Publisher: Oxford University Press ISBN: 0195151712 Category : Medical Languages : en Pages : 501
Book Description
Ions, their movements across membranes, and their flow through specialized ion channels are central to the understanding of brain function, normal and pathological. This book deals with the regulation of ions in brain, and the effects of changing ion levels on the excitability of neurons and on synaptic transmission. The roles of ions in generating epileptic seizures are considered, as well as in the devastation caused by hypoxia and stroke in brain tissue.
Author: G.D. Das
Author: G.D. Das
Author: Marilyn J. Cipolla
Author: G. D. Das
Author: Juerg Hodler
Author: Grant Maxie
Author: S.H. Fatemi
Author: John Barton Furness
Author: Francoise Gray
Author: George G. Somjen
Author: J. Gordon Betts