Morphogenesis of the brain in staged Rhesus monkey embryos
著者
書誌事項
Morphogenesis of the brain in staged Rhesus monkey embryos
（Advances in anatomy, embryology and cell biology, v. 91）
Springer-Verlag, 1984
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
During development two strongly interrelated processes can be discerned in the central nervous system (eNS), namely morphogenesis and histogenesis. Most neuroembryological studies deal with histogenetic features virtually with- out any morphological elucidation. It must be stressed, however, that histogen- etic investigations should be based upon a thorough knowledge of morphogene- sis. This holds especially for the forebrain, which during development is sub- jected to drastic transformations, particularly when only two-dimensional sec- tions are used. Therefore the present study on morphogenesis forms the first part of a research project on the ontogenesis of the brain in the rhesus monkey. The second part (Gribnau and Geijsberts 1984) will deal with the early histogene- sis of the forebrain. The first recognizable precursor of the eNS in vertebrates is the neural plate, which, after the formation of the germ layers, is induced in the ectoderm. The lateral margins of the neural plate start to rise, forming a neural groove. Eventu- ally, they meet dorsally in the midline and fuse, resulting in the formation of the neural tube.
The ultimate sites of closure at either end of the neural tube are called the anterior and posterior neuropores. Before the closure of the anterior neuropore, which precedes that of the posterior neuropore, the anlage of the eNS can be divided into a narrow elongated caudal part, the future spinal cord, and a wider rostral part, the precursor of the brain.
目次
1 Introduction.- 2 Materials and Methods.- 3 Description of the Stages.- 3.1 Stage 13.- 3.2 Stage 14.- 3.3 Stage 15.- 3.4 Stage 16.- 3.5 Stage 17.- 3.6 Stage 18.- 3.7 Stage 19.- 3.8 Stage 20.- 3.9 Stage 21.- 3.10 Stage 22.- 3.11 Stage 23.- 4 Discussion.- 4.1 Neuromerism.- 4.2 Longitudinal Zones and Ventricular Sulci.- 4.3 The Morphological Plan of the Diencephalon.- 4.4 The Basal Forebrain.- 4.5 Comparative Chronology of the Morphogenesis of the Brain.- 5 Summary.- Acknowledgments.- 6 References.- 7 Subject index.
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