This volume of Advances in Anatomy, Embryology and Cell Biology is based on material assembled by Dr. Jaap H.R. Schoen who was one of the few neuroanatomists to apply the Nauta method to human material. Gaining insight in the consequences of longitudinal damage to the human spinal cord is necessary before reimplantation of the avulsed rootlets or an autologous transplant can be performed in man.
This book offers a critical review of the pelvic sciences—past, present and future—from an anatomical and physiological perspective and is intended for researchers, medical practitioners and paramedical therapists in the fields of urology, gynecology and obstetrics, proctology, physiotherapy, as well as for patients. The book starts with a “construction plan” of the pelvis and shows its structural consequences. The historical background of pelvic studies proceeds from medieval and early Italian models to the definitive understanding of the pelvic anatomy in the Seventeenth century. During these eras of pelvic research, concepts and approaches developed that are illustrated with examples from comparative anatomy and from mutations, also with regard to the biomechanics of pelvic structures. Perceptions of the pelvis as an important element in sexual arousal and mating conduct are discussed, as well as attitudes to circumcision, castration and other mutilations, in its anthropological, social context. The anatomy and physiology of the pelvic wall and its organs as well as the development of these pelvic organs are covered as a prerequisite to understanding, for example, the spread of pelvic carcinoma and male and female bladder muscle function. Connective pelvic tissue is examined in its reinforcing capacity for pelvic structures, but also as a “hiding place” for infections. Innervations and reflexes relayed through the pelvic nerves are discussed in order to explain incontinence, sphincter function and the control of smooth and striated muscles in the pelvis. Catheters and drugs acting on pelvic function are described, and a critical review of alternative clinical methods for treating pelvic dysfunctions is provided.
This book offers a critical review of the head and neck from an anatomical, physiological and clinical perspective. It begins by providing essential anatomical and physiological information, then discusses historical and current views on specific aspects in subsequent chapters. For example, the anatomy of the skull cap or cranial vault provided in the first chapter is discussed in the context of malformation and identity, as well as the development of the bony skull, in the following chapters. These chapters provide stepping-stones to guide readers through the book. There are new fields of research and technological developments in which Anatomy and Physiology lose track of progress. One of the examples discussed is the automated face recognition. In some respects, e.g. when it comes to cancers and malformations, our understanding of the head and neck – and the resulting therapeutic outcomes – have been extremely disappointing. In others, such as injuries following car accidents, there have been significant advances in our understanding of head and neck dysfunctions and their treatment. Therefore head movements, also during sleep, and head and neck reflexes are discussed. The book makes unequivocal distinctions between correct and incorrect assumptions and provides a critical review of alternative clinical methods for head and neck dysfunctions, such as physiotherapy and lymphatic drainage for cancers. Moreover, it discusses the consequences of various therapeutic measures for physiological and biomechanical conditions, as well as puberty and aging. Lastly, it addresses important biomedical engineering developments for hearing e.g. cochlear implants and for applying vestibular cerebellar effects for vision.
Part II starts with a systemic model of the basal ganglia to evaluate the position of the STN in the direct, indirect and hyperdirect pathways. A summary of in vitro studies is given, describing STN spontaneous activity as well as responses to depolarizing and hyperpolarizing inputs, and high frequency stimulation. STN bursting activity and the underlying ionic mechanisms are investigated. Deep brain stimulation used for symptomatic treatment of Parkinson’s disease is discussed in terms of the elements that are influenced and its hypothesized mechanisms. This part of the monograph pays attention to the pedunculopontine-subthalamic connections and tries in cell cultures to mimic neurotransmitter actions of the pedunculopontine nucleus and high frequency stimulation on cultured dissociated rat subthalamic neurons. STN cell models: single and multi compartment, and system level models are discussed in relation to subthalamic function and dysfunction. Part I and II are mutually compared.
This monograph on the subthalamic nucleus accentuates the gap between experimental animal and human information concerning subthalamic development, cytology, topography and connections.
This monograph offers a comprehensive review of present knowledge of the structure and connections of the trigeminal nuclei in humans, and compares it to laboratory animal findings. The authors provide cytoarchitectural data from their own research, and trace trigeminal pathways in human material by means of the Nauta technique. In humans the trigeminal nuclear complex includes the motor nucleus, the principal sensory (pontine) nucleus, the spinal nucleus (subdivided into oral, interpolar and caudal nuclei), and the mesencephalic nucleus and several small nuclei. The supratrigeminal nucleus, as described in various mammals, is not defined in the human brain. The primary afferents to all subdivisions of the trigeminal nuclear complex in humans appear to be entirely ipsilateral. Some of the 'extratrigeminal' primary afferents described in experimental animals are also present in the human brain and the nucleus ovalis receives primary and possibly secondary afferents from the trigeminal systems. A significant difference between the human trigeminal system and the subprimate species is seen in the monosynaptic cortical projection to the motor trigeminal nucleus.
The studies described here were carried out in the Neuroregul ation Group, Department of Physiology, University of Leiden, the Netherlands. Over the last decade, this group, in close collaboration with the Department of Neurosurgery of the Academic Hospital of Leiden, has studied the development of the central nervous system from a neuroanatomical as well as a clinical perspective. During this period, the expression of several morphore gulators in the developing rat spinal cord was extensively investigated. Parallel studies focused on the development of the spinal cord fiber systems, which was studied by means of the intrauterine use of neuronal tracers. The main goal of these studies was to extend our knowledge about the (normal) generation of the spinal cord and to contribute to the under standing of clinical problems related to regeneration and degeneration in the mammalian central nervous system. The studies on morphoregulators, in particular, appeared to benefit two different scientific areas. Firstly, the correlation between morphoregulator expression patterns and known anatomy contributed to our knowledge about spinal cord development. Secondly, the correlation between morpho regulator expression patterns and known developmental processes may help to understand their precise function(s). This volume of Advances in Anatomy, Embryology and Cell Biology presents these particular studies on the development of the rat spinal cord performed over the last decade. As well as integrating the results of the tracer studies, this volume also provides an update on the development of the rat spinal cord.
A sound and detailed knowledge of the anatomy of the pelvic floor is of the utmost importance to gynecologists, obstetricians, surgeons, and urologists, since they all share the same responsibility in treating patients with different pathological conditions caused by pelvic floor dysfunction. The most common clinical expressions of pelvic floor dysfunction are urinary incontinence, anal incontinence, and pelvic organ prolapse. Most often these clinical expressions are found in women, and they are briefly discussed below based on the outline presented in the Third International Consultation on Incontinence, a joint effort of the International Continence Society and the World Health Organization. Established potential risk factors are age, childbearing, and obesity. The pelvic floor plays an important role in these risk factors. There is evidence that the pelvic floor structures change with age, giving rise to dysfunction. Pregnancy, and especially vaginal delivery, may result in pelvic floor laxity as a consequence of weakening, stretching, and even laceration of the muscles and connective tissue, or due to damage to pudendal and pelvic nerves. Comparable to pregnancy, obesity causes chronic strain, stretching, and weakening of muscles, nerves, and other structures of the pelvic floor.
This monograph on the subthalamic nucleus accentuates the gap between experimental animal and human information concerning subthalamic development, cytology, topography and connections.
The studies described here were carried out in the Neuroregul ation Group, Department of Physiology, University of Leiden, the Netherlands. Over the last decade, this group, in close collaboration with the Department of Neurosurgery of the Academic Hospital of Leiden, has studied the development of the central nervous system from a neuroanatomical as well as a clinical perspective. During this period, the expression of several morphore gulators in the developing rat spinal cord was extensively investigated. Parallel studies focused on the development of the spinal cord fiber systems, which was studied by means of the intrauterine use of neuronal tracers. The main goal of these studies was to extend our knowledge about the (normal) generation of the spinal cord and to contribute to the under standing of clinical problems related to regeneration and degeneration in the mammalian central nervous system. The studies on morphoregulators, in particular, appeared to benefit two different scientific areas. Firstly, the correlation between morphoregulator expression patterns and known anatomy contributed to our knowledge about spinal cord development. Secondly, the correlation between morpho regulator expression patterns and known developmental processes may help to understand their precise function(s). This volume of Advances in Anatomy, Embryology and Cell Biology presents these particular studies on the development of the rat spinal cord performed over the last decade. As well as integrating the results of the tracer studies, this volume also provides an update on the development of the rat spinal cord.
This book offers a critical review of the head and neck from an anatomical, physiological and clinical perspective. It begins by providing essential anatomical and physiological information, then discusses historical and current views on specific aspects in subsequent chapters. For example, the anatomy of the skull cap or cranial vault provided in the first chapter is discussed in the context of malformation and identity, as well as the development of the bony skull, in the following chapters. These chapters provide stepping-stones to guide readers through the book. There are new fields of research and technological developments in which Anatomy and Physiology lose track of progress. One of the examples discussed is the automated face recognition. In some respects, e.g. when it comes to cancers and malformations, our understanding of the head and neck – and the resulting therapeutic outcomes – have been extremely disappointing. In others, such as injuries following car accidents, there have been significant advances in our understanding of head and neck dysfunctions and their treatment. Therefore head movements, also during sleep, and head and neck reflexes are discussed. The book makes unequivocal distinctions between correct and incorrect assumptions and provides a critical review of alternative clinical methods for head and neck dysfunctions, such as physiotherapy and lymphatic drainage for cancers. Moreover, it discusses the consequences of various therapeutic measures for physiological and biomechanical conditions, as well as puberty and aging. Lastly, it addresses important biomedical engineering developments for hearing e.g. cochlear implants and for applying vestibular cerebellar effects for vision.
A sound and detailed knowledge of the anatomy of the pelvic floor is of the utmost importance to gynecologists, obstetricians, surgeons, and urologists, since they all share the same responsibility in treating patients with different pathological conditions caused by pelvic floor dysfunction. The most common clinical expressions of pelvic floor dysfunction are urinary incontinence, anal incontinence, and pelvic organ prolapse. Most often these clinical expressions are found in women, and they are briefly discussed below based on the outline presented in the Third International Consultation on Incontinence, a joint effort of the International Continence Society and the World Health Organization. Established potential risk factors are age, childbearing, and obesity. The pelvic floor plays an important role in these risk factors. There is evidence that the pelvic floor structures change with age, giving rise to dysfunction. Pregnancy, and especially vaginal delivery, may result in pelvic floor laxity as a consequence of weakening, stretching, and even laceration of the muscles and connective tissue, or due to damage to pudendal and pelvic nerves. Comparable to pregnancy, obesity causes chronic strain, stretching, and weakening of muscles, nerves, and other structures of the pelvic floor.
Part II starts with a systemic model of the basal ganglia to evaluate the position of the STN in the direct, indirect and hyperdirect pathways. A summary of in vitro studies is given, describing STN spontaneous activity as well as responses to depolarizing and hyperpolarizing inputs, and high frequency stimulation. STN bursting activity and the underlying ionic mechanisms are investigated. Deep brain stimulation used for symptomatic treatment of Parkinson’s disease is discussed in terms of the elements that are influenced and its hypothesized mechanisms. This part of the monograph pays attention to the pedunculopontine-subthalamic connections and tries in cell cultures to mimic neurotransmitter actions of the pedunculopontine nucleus and high frequency stimulation on cultured dissociated rat subthalamic neurons. STN cell models: single and multi compartment, and system level models are discussed in relation to subthalamic function and dysfunction. Part I and II are mutually compared.
This volume of Advances in Anatomy, Embryology and Cell Biology is based on material assembled by Dr. Jaap H.R. Schoen who was one of the few neuroanatomists to apply the Nauta method to human material. Gaining insight in the consequences of longitudinal damage to the human spinal cord is necessary before reimplantation of the avulsed rootlets or an autologous transplant can be performed in man.
This book offers a critical review of the pelvic sciences—past, present and future—from an anatomical and physiological perspective and is intended for researchers, medical practitioners and paramedical therapists in the fields of urology, gynecology and obstetrics, proctology, physiotherapy, as well as for patients. The book starts with a “construction plan” of the pelvis and shows its structural consequences. The historical background of pelvic studies proceeds from medieval and early Italian models to the definitive understanding of the pelvic anatomy in the Seventeenth century. During these eras of pelvic research, concepts and approaches developed that are illustrated with examples from comparative anatomy and from mutations, also with regard to the biomechanics of pelvic structures. Perceptions of the pelvis as an important element in sexual arousal and mating conduct are discussed, as well as attitudes to circumcision, castration and other mutilations, in its anthropological, social context. The anatomy and physiology of the pelvic wall and its organs as well as the development of these pelvic organs are covered as a prerequisite to understanding, for example, the spread of pelvic carcinoma and male and female bladder muscle function. Connective pelvic tissue is examined in its reinforcing capacity for pelvic structures, but also as a “hiding place” for infections. Innervations and reflexes relayed through the pelvic nerves are discussed in order to explain incontinence, sphincter function and the control of smooth and striated muscles in the pelvis. Catheters and drugs acting on pelvic function are described, and a critical review of alternative clinical methods for treating pelvic dysfunctions is provided.
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