Journal of Electron Microscopy Advance Access originally published online on February 4, 2009
Journal of Electron Microscopy 2009 58(2):67-72; doi:10.1093/jmicro/dfp001
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A small lamellar corpuscle within a small nerve bundle outside the tendon of the rat soleus muscle
1 Department of Integrated Basic Medical Research, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan
2 Department of Otolaryngology, Ehime University School of Medicine, Toon, Ehime 791-0295, Japan
* To whom correspondence should be addressed. E-mail: desaki{at}m.ehime-u.ac.jp
A small nerve bundle outside the tendon of the adult rat soleus muscle contained a small lamellar corpuscle similar in structural organization to the ordinary paciniform corpuscle. A terminal axon composing this corpuscle was originated from a side branch of an afferent nerve fiber and surrounded by a number (
15) of closely packed flattened lamellae of modified Schwann cells, while the stem nerve fiber freely terminated within the nerve bundle. These findings suggested that an afferent nerve fiber retracted after degeneration might extend a new branch within the nerve bundle and unexpectedly form a lamellar corpuscle within it.
Keywords small nerve bundle, tendon, small lamellar (paciniform) corpuscle, soleus muscle, adult rat
Received 16 October 2008, accepted 25 December 2008