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File:The Excitatory Process in the Dog's Heart. Part II. The Ventricles (1915) (14783446612).jpg

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Description
English:

Identifier: philtrans05069549 (find matches)
Title: The Excitatory Process in the Dog's Heart. Part II. The Ventricles
Year: 1915 (1910s)
Authors: Lewis, T. Rothschild, M.
Subjects: Proceedings of the Royal Society of London Philosophical Transactions of the Royal Society
Publisher: Royal Society of London

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Text Appearing Before Image:
e of it, and has a separate sheath of endocardium. * Das Eeizleitungssystem des Saugetierherzens, Jena (1906).t Amer. Joum. of Anat., vol. 13, p. 55 (1912).J < Heart/ vol. 4, p. 225 (1912-13). 186 MESSES. T. LEWIS AND M. A. ROTHSCHILD ON THE An example is shown in outline in fig. 3 (m.b. = moderator band ; c-b, the separatesheathed branch of the bundle). The injection fluid was allowed to flow up thesheath of this bundle (from the point marked inj); it quickly spread along the wholelength of the right division (d) and, flowing out through the free branches (a, a), filleda network whose extent is indicated by the arrows on the chart. We emphasise theseearly outgoing branches in the ox heart because we have failed to find them in thedog. The actual network of the right ventricle in the ox is found throughout almostthe whole extent of the subendocardial space (see Plate 11, fig. 24). The apical portionsare everywhere lined with it, and it extends throughout the whole conus to within a
Text Appearing After Image:
Fig. 3.—An outline drawing (§ natural size) of the opened right ventricle of an ox heart, p.v. = pulmonaryvalves; t.v. = septal segment of tricuspid valve ; p.m. = papillary muscle ; m.b. = moderator band ;c-b = right division of bundle specially ensheathed with endocardium. Colouring matter was injectedupwards at the point marked inj.; it flowed in the sheaths of the Purkinje tissue over the areasindicated by arrows. few millimetres of the bases of the pulmonary valves. It extends towards thetricuspid valves on the free and septal wall of the ventricle, but on the latter notmore than a few slender offshoots extend so far as to be concealed by the septalsegment of the valve. The subendocardial space deep to this valve segment is poorlysupplied. In the dogs heart the injection method has been found to be impracticable, thoughit has been attempted frequently. We have used another method of displaying the EXCITATOKY PEOOESS IN THE DOGS HEART. 187 system. We have taken advantage of Besphiltrans05069549

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  • bookid:philtrans05069549
  • bookyear:1915
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Lewis__T_
  • bookauthor:Rothschild__M_
  • booksubject:Proceedings_of_the_Royal_Society_of_London
  • booksubject:Philosophical_Transactions_of_the_Royal_Society
  • bookpublisher:Royal_Society_of_London
  • bookcontributor:
  • booksponsor:
  • bookleafnumber:5
  • bookcollection:philosophicaltransactions
  • bookcollection:additional_collections
Flickr posted date
InfoField
30 July 2014

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