File:The cell in development and inheritance (1902) (14783179515).jpg

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Identifier: cellindevelopmenwils2 (find matches)
Title: The cell in development and inheritance
Year: 1902 (1900s)
Authors: Wilson, Edmund B. (Edmund Beecher), 1856-1939
Subjects: Cell Physiological Phenomena Cells
Publisher: New York : Macmillan
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Fig. 86. — Formation of the spermatozoon in mammals. (Meves.)A. Spermatid of man, sliowing centrosomes and axial filament. B. Spermatid of guinea-pig, with acrosome. C. Nearly mature spermatozoon, showing backward migration of the ring. D. Mature spermatozoon; r. final position of the ring. a. Acrosome surrounded by cytoplasm of the cell-body, most of which is afterward thrown off; c. centrosomes; c.p. connecting-piece; f. fiagellum; k. neck, containing end-knobs; J. remains of the sphere (idiozome). and Lenhossek differ somewhat in their accounts of the later historyof these centrosomes, though agreeing that both contribute to theformation of the middle-piece. Lenhossek states that in the rat bothcentrosomes persist at the base of the nucleus to form the end-knob,which, as Jensen showed (87), is double in this animal. Meves findsthe process to be more complicated, agreeing in the main with thatobserved by him in the salamander. In man and the rat the innercentrosome passes to the b

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  • bookid:cellindevelopmenwils2
  • bookyear:1902
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Wilson__Edmund_B___Edmund_Beecher___1856_1939
  • booksubject:Cell_Physiological_Phenomena
  • booksubject:Cells
  • bookpublisher:New_York___Macmillan
  • bookcontributor:Francis_A__Countway_Library_of_Medicine
  • booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School
  • bookleafnumber:196
  • bookcollection:medicalheritagelibrary
  • bookcollection:francisacountwaylibrary
  • bookcollection:americana
  • BHL Collection
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30 July 2014

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