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THE JOURNAL OF COMPARATIVE NEUROLOGY 260:349-361(1987) The Spinothalamic Tract
 

Summary: THE JOURNAL OF COMPARATIVE NEUROLOGY 260:349-361(1987)
The Spinothalamic Tract:
An Examination of the Cells of Origin of the Dorsolateral
and Ventral Spinothalamic Pathways in Cats
M.W. JONES, A.V. APKARIAN, R.T. STEVENS AND C.J. HODGE, JR.
Department of Neurosurgery, State University of New York Health Science Center,
Syracuse, New York 13210
ABSTRACT
The locations of spinothalamic neurons and the funicular trajectories of
their axons were studied in cats by retrograde transport of horseradish
peroxidase (HRP). Five animals were used as controls to determine the
cervical and lumbar laminar distributions of neurons contributing to the
spinothalamic tract. An additional eight animals were used to determine
the funicular trajectories of the spinothalamic axons of lumbar neurons by
utilizing a series of thoracic spinal cord lesions in conjunction with retro-
grade transport of HRP from the sensory thalamus. Three of these animals
underwent midthoracic ventral quadrant lesions, four animals underwent
midthoracic dorsolateral funiculus lesions, and one animal underwent total
spinal cord transection sparing the dorsal columns. The locations of the cells
containing the HRP reaction product were then determined after a 3- to 5-

  

Source: Apkarian, A. Vania - Department of Physiology, Northwestern University

 

Collections: Biology and Medicine