Oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, Homarus gammarus
The musculature and innervation of the oesophagus of Homarus gammarus are described as a prerequisite to studies on the mechanisms and control of food ingestion. Of particular interest are two paired sensors (the anterior and posterior oesophageal sensors) which are bilaterally situated at the oes...
Published in: | Proceedings of the Royal Society of London. Series B. Biological Sciences |
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Online Access: | http://dx.doi.org/10.1098/rspb.1979.0103 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.1979.0103 |
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crroyalsociety:10.1098/rspb.1979.0103 2024-06-02T08:07:51+00:00 Oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, Homarus gammarus 1979 http://dx.doi.org/10.1098/rspb.1979.0103 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.1979.0103 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society of London. Series B. Biological Sciences volume 206, issue 1163, page 235-263 ISSN 0080-4649 2053-9193 journal-article 1979 crroyalsociety https://doi.org/10.1098/rspb.1979.0103 2024-05-07T14:16:47Z The musculature and innervation of the oesophagus of Homarus gammarus are described as a prerequisite to studies on the mechanisms and control of food ingestion. Of particular interest are two paired sensors (the anterior and posterior oesophageal sensors) which are bilaterally situated at the oesophageal-cardiac sac valve. These are similar to contact chemoreceptors previously described in insects and are classified as such on morphological grounds and with indirect electro-physiological evidence. Oesophageal peristalsis is effected by the coordinated contraction of the oesophageal musculature. This is controlled by rhythmical bursting neuronal activity, which can be recorded from the nerve trunks in the area. A characteristic burst recorded from the superior oesophageal nerve is used as an indication of oesophageal dilatation during peristalsis for studies on the feedback effects of the oesophageal sensors. Electrical and chemical stimulation of the posterior oesophageal sensors can initiate and increase the frequency of oesophageal peristalsis, while stimulation of the anterior oesophageal sensors can slow and terminate oesophageal peristalsis. The results are discussed and a model presented of the role of the oesophageal sensors in feeding. Article in Journal/Newspaper Homarus gammarus The Royal Society Proceedings of the Royal Society of London. Series B. Biological Sciences 206 1163 235 263 |
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Open Polar |
collection |
The Royal Society |
op_collection_id |
crroyalsociety |
language |
English |
description |
The musculature and innervation of the oesophagus of Homarus gammarus are described as a prerequisite to studies on the mechanisms and control of food ingestion. Of particular interest are two paired sensors (the anterior and posterior oesophageal sensors) which are bilaterally situated at the oesophageal-cardiac sac valve. These are similar to contact chemoreceptors previously described in insects and are classified as such on morphological grounds and with indirect electro-physiological evidence. Oesophageal peristalsis is effected by the coordinated contraction of the oesophageal musculature. This is controlled by rhythmical bursting neuronal activity, which can be recorded from the nerve trunks in the area. A characteristic burst recorded from the superior oesophageal nerve is used as an indication of oesophageal dilatation during peristalsis for studies on the feedback effects of the oesophageal sensors. Electrical and chemical stimulation of the posterior oesophageal sensors can initiate and increase the frequency of oesophageal peristalsis, while stimulation of the anterior oesophageal sensors can slow and terminate oesophageal peristalsis. The results are discussed and a model presented of the role of the oesophageal sensors in feeding. |
format |
Article in Journal/Newspaper |
title |
Oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, Homarus gammarus |
spellingShingle |
Oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, Homarus gammarus |
title_short |
Oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, Homarus gammarus |
title_full |
Oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, Homarus gammarus |
title_fullStr |
Oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, Homarus gammarus |
title_full_unstemmed |
Oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, Homarus gammarus |
title_sort |
oesophageal sensors and their modulatory influence on oesophageal peristalsis in the lobster, homarus gammarus |
publisher |
The Royal Society |
publishDate |
1979 |
url |
http://dx.doi.org/10.1098/rspb.1979.0103 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.1979.0103 |
genre |
Homarus gammarus |
genre_facet |
Homarus gammarus |
op_source |
Proceedings of the Royal Society of London. Series B. Biological Sciences volume 206, issue 1163, page 235-263 ISSN 0080-4649 2053-9193 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.1979.0103 |
container_title |
Proceedings of the Royal Society of London. Series B. Biological Sciences |
container_volume |
206 |
container_issue |
1163 |
container_start_page |
235 |
op_container_end_page |
263 |
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1800752980958380032 |