Book - Manual of Human Embryology 18: Difference between revisions
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By C. S. Minot, H. M. Evans, J. Tandler, and F. R. Sabin. | By C. S. Minot, H. M. Evans, J. Tandler, and F. R. Sabin. | ||
# [[Book_-_Manual_of_Human_Embryology_18-1|The Origin of the Angioblast and the Development of the Blood]] | |||
==Introduction== | |||
The number of papers upon the development of the blood is large, but the majority of them have been written from the clinical standpoint and they often leave much to be wished for the scientific interpretation of the theme. To these clinical writings we owe a confusing nomenclature of the bloodcorpuscles which, unfortunately, has become current in medical works, although it sins against every morphological principle. It unites forms which are morphologically different and separates forms which genetically and morphologically belong together, as is explained more fully in the note, p. 503, and in connection with the discussion of the development of leucocytes. Under these conditions it becomes unavoidable to discard almost entirely the current nomenclature and to replace it by 'a new one. The new nomenclature is in part taken over from others, in part proposed by nryself. It at least corresponds to the morphological demands. | |||
The following exposition is based chiefly on the investigations of four morphologists, — W. His, 0. van der Stricht, J. Jolly, and F. Weidenreich, — to whom we are indebted for the greater part of our present comprehension of the problem of the blood. Of further importance is the just-published (March, 1909) memoir of Maximow (Arch. f. mikr. Anat., vol. lxxiii, p. 444), who studied the development of blood especially in rabbit einbryos. Ruckert and Mollier, 2 in Hertwig's " Handbuck," have given a detailed account of the early development of the angioblast in all classes of vertebrates. The value of this work is very high, and for that reason we regret very much that they have not included the eytomorphosis of the blood-corpuscles within the limits of their account. Although I am unable in many cases to adopt the point of view of the clinicians as my own, yet I have collected from their writings many data. | |||
Revision as of 07:52, 4 December 2013
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XVIII. The Development of the Blood, the Vascular System, and the Spleen
By C. S. Minot, H. M. Evans, J. Tandler, and F. R. Sabin.
Introduction
The number of papers upon the development of the blood is large, but the majority of them have been written from the clinical standpoint and they often leave much to be wished for the scientific interpretation of the theme. To these clinical writings we owe a confusing nomenclature of the bloodcorpuscles which, unfortunately, has become current in medical works, although it sins against every morphological principle. It unites forms which are morphologically different and separates forms which genetically and morphologically belong together, as is explained more fully in the note, p. 503, and in connection with the discussion of the development of leucocytes. Under these conditions it becomes unavoidable to discard almost entirely the current nomenclature and to replace it by 'a new one. The new nomenclature is in part taken over from others, in part proposed by nryself. It at least corresponds to the morphological demands.
The following exposition is based chiefly on the investigations of four morphologists, — W. His, 0. van der Stricht, J. Jolly, and F. Weidenreich, — to whom we are indebted for the greater part of our present comprehension of the problem of the blood. Of further importance is the just-published (March, 1909) memoir of Maximow (Arch. f. mikr. Anat., vol. lxxiii, p. 444), who studied the development of blood especially in rabbit einbryos. Ruckert and Mollier, 2 in Hertwig's " Handbuck," have given a detailed account of the early development of the angioblast in all classes of vertebrates. The value of this work is very high, and for that reason we regret very much that they have not included the eytomorphosis of the blood-corpuscles within the limits of their account. Although I am unable in many cases to adopt the point of view of the clinicians as my own, yet I have collected from their writings many data.
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Cite this page: Hill, M.A. (2024, May 28) Embryology Book - Manual of Human Embryology 18. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Book_-_Manual_of_Human_Embryology_18
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