Mechanisms of Locomotory Speed Change: The Pteropod Solution
Three primary factors contribute to locomotory speed changes in the pteropod mollusk Clione limacina . (1) An increase in cycle frequency of locomotory appendages is associated with a baseline depolarization and enhancement of postinhibitory rebound in central pattern generator (CPG) interneurons, a...
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Oxford University Press
2001
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fthighwire:oai:open-archive.highwire.org:icbiol:41/4/1001 2023-05-15T15:55:41+02:00 Mechanisms of Locomotory Speed Change: The Pteropod Solution Satterlie, Richard A. Norekian, Tigran P. 2001-08-01 00:00:00.0 text/html http://icb.oxfordjournals.org/cgi/content/short/41/4/1001 https://doi.org/10.1093/icb/41.4.1001 en eng Oxford University Press http://icb.oxfordjournals.org/cgi/content/short/41/4/1001 http://dx.doi.org/10.1093/icb/41.4.1001 Copyright (C) 2001, The Society for Integrative and Comparative Biology Symposium (Swimming) TEXT 2001 fthighwire https://doi.org/10.1093/icb/41.4.1001 2007-06-23T22:54:56Z Three primary factors contribute to locomotory speed changes in the pteropod mollusk Clione limacina . (1) An increase in cycle frequency of locomotory appendages is associated with a baseline depolarization and enhancement of postinhibitory rebound in central pattern generator (CPG) interneurons, and a reorganization of the CPG through recruitment of additional interneurons. (2) An increase in the force of appendage movements is generated through enhancement of activity of active motoneurons, recruitment of additional motoneurons and peripheral modulation of swim musculature. (3) Changes in biomechanical aspects of appendage movements are presumably achieved, at least in part, through changes in the activity of motoneurons and swim muscle. All changes associated with non-startle swim acceleration are produced by a serotonergic arousal system that acts at all three levels of the swimming system: CPG interneurons, motoneurons and swim musculature. Text Clione limacina HighWire Press (Stanford University) American Zoologist 41 4 1001 1008 |
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Open Polar |
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HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
Symposium (Swimming) |
spellingShingle |
Symposium (Swimming) Satterlie, Richard A. Norekian, Tigran P. Mechanisms of Locomotory Speed Change: The Pteropod Solution |
topic_facet |
Symposium (Swimming) |
description |
Three primary factors contribute to locomotory speed changes in the pteropod mollusk Clione limacina . (1) An increase in cycle frequency of locomotory appendages is associated with a baseline depolarization and enhancement of postinhibitory rebound in central pattern generator (CPG) interneurons, and a reorganization of the CPG through recruitment of additional interneurons. (2) An increase in the force of appendage movements is generated through enhancement of activity of active motoneurons, recruitment of additional motoneurons and peripheral modulation of swim musculature. (3) Changes in biomechanical aspects of appendage movements are presumably achieved, at least in part, through changes in the activity of motoneurons and swim muscle. All changes associated with non-startle swim acceleration are produced by a serotonergic arousal system that acts at all three levels of the swimming system: CPG interneurons, motoneurons and swim musculature. |
format |
Text |
author |
Satterlie, Richard A. Norekian, Tigran P. |
author_facet |
Satterlie, Richard A. Norekian, Tigran P. |
author_sort |
Satterlie, Richard A. |
title |
Mechanisms of Locomotory Speed Change: The Pteropod Solution |
title_short |
Mechanisms of Locomotory Speed Change: The Pteropod Solution |
title_full |
Mechanisms of Locomotory Speed Change: The Pteropod Solution |
title_fullStr |
Mechanisms of Locomotory Speed Change: The Pteropod Solution |
title_full_unstemmed |
Mechanisms of Locomotory Speed Change: The Pteropod Solution |
title_sort |
mechanisms of locomotory speed change: the pteropod solution |
publisher |
Oxford University Press |
publishDate |
2001 |
url |
http://icb.oxfordjournals.org/cgi/content/short/41/4/1001 https://doi.org/10.1093/icb/41.4.1001 |
genre |
Clione limacina |
genre_facet |
Clione limacina |
op_relation |
http://icb.oxfordjournals.org/cgi/content/short/41/4/1001 http://dx.doi.org/10.1093/icb/41.4.1001 |
op_rights |
Copyright (C) 2001, The Society for Integrative and Comparative Biology |
op_doi |
https://doi.org/10.1093/icb/41.4.1001 |
container_title |
American Zoologist |
container_volume |
41 |
container_issue |
4 |
container_start_page |
1001 |
op_container_end_page |
1008 |
_version_ |
1766391173532876800 |