Evidence for three populations by size in l5 spinal ganglion in man

Yasuo Kawamura, Peter James Dyck

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


In recent morphometric studies of the cytons of lumbar motoneuron columns, it was possible to discriminate various populations by the criterion of size. It was felt that the use of celloidin embedding, optimal enlargement to increase the number of counting windows, and the use of improved morphometric analysis had been important to this discrimination. Employing the improved methods of histologic preparation and morphometry to a study of the L5 spinal ganglia of man, it has been possible to show tentatively that there are at least three populations of cytons by diameter. The average number of large, intermediate and small cytons were 11,429, 31,675, and 25,389 respectively. It should now be possible to test whether selective congenital absence or degeneration of any of these three populations of cell bodies is found in disorders affecting primary afferent neurons.

Original languageEnglish (US)
Pages (from-to)269-272
Number of pages4
JournalJournal of Neuropathology and Experimental Neurology
Issue number3
StatePublished - 1978

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Neurology
  • Clinical Neurology
  • Cellular and Molecular Neuroscience


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