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Diseases of the Nervous System

In Infancy, Childhood and Adolescence - Sixth Edition

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PRENATAL DISEASES AND DEVELOPMENTAL DEFECTS OF THE NERVOUS SYSTEM INTRODUCTION.—-We may divide the abnormalities of the nervous system which arise before birth into two chief groups. In one, some part of the nervous system is absent, or incompletely formed, and it is evident that we are not dealing with destruction as a result of injury or disease, but with a defect of development. In the second group, we find evidence that the nervous system has developed up to a certain point and that destruction of nervous tissue has then taken place. It is not always easy to separate these two groups, for injuries inflicted during the course of development may not only destroy the affected structure, but may inhibit the development of closely related structures. The defects of development, apparently, are much more common than the intrauterine diseases. The former group will be discussed first. We shall learn in the following pages that there is a great variety of defects of the nervous system, a

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Diseases of the Nervous System, Frank Rodolph Ford

Lingua
Pubblicato
1973
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Metodi di pagamento

Titolo
Diseases of the Nervous System
Sottotitolo
In Infancy, Childhood and Adolescence - Sixth Edition
Lingua
Inglese
Pubblicato
1973
Formato
Copertina rigida
Pagine
1557
ISBN10
0398028451
ISBN13
9780398028459
Serie
Descrizione
PRENATAL DISEASES AND DEVELOPMENTAL DEFECTS OF THE NERVOUS SYSTEM INTRODUCTION.—-We may divide the abnormalities of the nervous system which arise before birth into two chief groups. In one, some part of the nervous system is absent, or incompletely formed, and it is evident that we are not dealing with destruction as a result of injury or disease, but with a defect of development. In the second group, we find evidence that the nervous system has developed up to a certain point and that destruction of nervous tissue has then taken place. It is not always easy to separate these two groups, for injuries inflicted during the course of development may not only destroy the affected structure, but may inhibit the development of closely related structures. The defects of development, apparently, are much more common than the intrauterine diseases. The former group will be discussed first. We shall learn in the following pages that there is a great variety of defects of the nervous system, a