JCB logo
CrossRef
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents
This Article
Right arrow Full Text (PDF, 1810K)
Right arrow Alert me when this article is cited
Services
Right arrow Email this article
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new content in the JCB
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Nakajima, Y.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Nakajima, Y.
Right arrowPubmed/NCBI databases
*Compound via MeSH
*Substance via MeSH
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Facebook   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?
The Journal of Cell Biology, Vol 50, 121-134, Copyright © 1971 by Rockefeller University Press

ARTICLE

FINE STRUCTURE OF THE MEDIAL NUCLEUS OF THE TRAPEZOID BODY OF THE BAT WITH SPECIAL REFERENCE TO TWO TYPES OF SYNAPTIC ENDINGS



Yasuko Nakajima 1

1 From the Department of Anatomy, Faculty of Medicine, University of Tokyo, Tokyo, Japan.

Dr. Nakajima's present address is the Department of Biological Sciences, Purdue University, Lafayette, Indiana 47907

The medial nucleus of the trapezoid body has been studied electron microscopically in two species of bat, Miniopterus schreibersi fuliginosus and Vespertilio superans, which were perfused with three different kinds of fixatives, osmium tetroxide, glutaraldehyde, and formaldehyde. Two types of synaptic endings are observed in the nucleus: the abundant calyciferous endings and the less frequently occurring "small-vesicle endings." The former endings vary greatly in size, and contain extended extracellular spaces between pre- and post-synaptic membranes. The latter endings are always small, without the extended extracellular spaces, and tend to lie side by side. In all of the materials perfused with three different fixatives, synaptic vesicles in the calyciferous endings are round in shape and larger than those in the small-vesicle endings. The shape of vesicles in the small-vesicle endings varies according to the kinds of fixatives used; round in osmium tetroxide-fixed materials, flattened in formaldehyde-fixed materials, and somewhat round or flattened in glutaraldehyde-fixed materials. It is suggested that the calyciferous endings are excitatory in nature and that the small-vesicle endings are inhibitory.

Submitted on August 31, 1970
Revised on October 16, 1970


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Facebook Facebook   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?


This article has been cited by other articles:



  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents