The distribution of the spinal terminals (boutons) of the pyramidal tract, determined by experimental degeneration

In a previous paper in these ‘Proceeding’ (E. C. Hoff, 1932), a report was given of investigation concerning the boutons terminaux which constitute the terminals of nerve fibres around dendrites and perikarya in the central nervous system. It was shown that 24 to 48 hours after selection of the affe...

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Bibliographic Details
Published in:Proceedings of the Royal Society of London. Series B, Containing papers of a biological character Containing papers of a biological character, 1932-08, Vol.111 (771), p.226-237
Main Author: Hoff, E. C.
Format: Article
Language:English
Subjects:
Cats
Cervical vertebrae
Dendrites
Gray matter
Lesions
Monkeys
Motor cortex
Nerve fibers
Pyramidal tracts
Spinal cord
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Summary:In a previous paper in these ‘Proceeding’ (E. C. Hoff, 1932), a report was given of investigation concerning the boutons terminaux which constitute the terminals of nerve fibres around dendrites and perikarya in the central nervous system. It was shown that 24 to 48 hours after selection of the afferent roots of the spinal cord of the cat, the boutons undergo degenerative swelling and granulation. This degenerative process reaches a climax in 3 days and ends in the complete destruction of the terminals after 4 to 6 days.* In the present studies, the normal synapses of the monkey have been investigated; further, the phenomenon of degeneration of boutons following section of nerve fibres has been applied as a method for determining the endings of the pyramidal tracts in the cat and the monkey.
ISSN:0950-1193
2053-9185
DOI:10.1098/rspb.1932.0053