Paper - The development of the neural folds and cranial ganglia of the rat

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Adelman HB. The development of the neural folds and cranial ganglia of the rat. (1925) J. Comp. Neurol. 39(1): 19-171.

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This historic 1925 paper by Adelman described development of the early rat central nervous system and cranial ganglia.

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1915 Normal Albino Rat | 1915 Abnormal Albino Rat | 1915 Albino Rat Development | 1921 Somitogenesis | 1925 Neural Folds and Cranial Ganglia | 1933 Vaginal smear | 1938 Heart

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The Development of the Neural Folds and Cranial Ganglia of the Rat

Draft Version Only


  • Introduction
  • Material and methods
  • The development of the cranial neural folds
  • The Neural crest
  • The development of the cranial ganglia
    • The trigeminus
    • The acoustic-facial ganglion
      • The acoustic ganglion
    • The glossopharyngeal and vagus ganglia
  • Discussion
  • Bibliography


The early development of the neural tube and cranial ganglia has been investigated with some degree of completeness in only a few mammalian forms. There are, it is true, numerous accounts based upon the study of very limited material and the literature abounds with observations on the development of the neural tube and cranial ganglia made incidentally in works dealiiig with the general anatomy of the embryo. Bartelmez ('22, '23) has recently called attention to the paucity of our knowledge of this subject and has himself contributed greatly to our understanding of the early development of the neural folds and sensory anlagen of the human embryo.

The reasons for the scarcity of work dealing with the development of these structures in the Mammalia are obvious, since the difficulties attending the collection of complete series of mammalian embryos are well known. In studying human embryos investigators have been especially handicapped both by the scarcity of the material at their command and the faulty preservation which such embryos frequently exhibit due to the circumstances under which they are obtained.

Cite this page: Hill, M.A. (2021, December 9) Embryology Paper - The development of the neural folds and cranial ganglia of the rat. Retrieved from

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© Dr Mark Hill 2021, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G