Document Detail

The digestive tract of Nautilus pompilius (Cephalopoda, Tetrabranchiata): an X-ray analytical and computational tomography study on the living animal.
MedLine Citation:
PMID:  12000806     Owner:  NLM     Status:  MEDLINE    
Using X-ray analytical studies and computational tomography, the position of the digestive tract of the tetrabranchiate cephalopod Nautilus pompilius L. was demonstrated in a living animal. For the first time, a detailed analysis of the rate of digestion and the duration of the different phases of a digestive cycle has been made using these in vivo methods. At 20 min after food intake, the food has entered the stomach, where it is reduced to small pieces; most is stored in the crop, which is enlarged to approximately four times its original size. The chyme reaches the midgut gland 3 h and the rectal loop 5 h after food intake. The time between food intake and elimination is 12 h. Thus, in Nautilus pompilius, digestion takes approximately the same time as described for nectobenthic sepioids and benthic octopods but is approximately 6 h longer than in loliginids, which have a pelagic mode of life. Furthermore, the three-dimensional structure of the digestive tract of a living Nautilus pompilius L. was demonstrated using computational tomography.
Bettina Westermann; Peter Ruth; Horst Detlef Litzlbauer; Ingrid Beck; Knut Beuerlein; Henrike Schmidtberg; Erhard F Kaleta; Rudolf Schipp
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of experimental biology     Volume:  205     ISSN:  0022-0949     ISO Abbreviation:  J. Exp. Biol.     Publication Date:  2002 Jun 
Date Detail:
Created Date:  2002-05-09     Completed Date:  2002-12-10     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0243705     Medline TA:  J Exp Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1617-24     Citation Subset:  IM    
Institut für Allgemeine und Spezielle Zoologie, Bereich Entwicklungsbiologie, Stephanstrasse 24, D-35390 Giessen, Germany.
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MeSH Terms
Digestive System / anatomy & histology,  radiography
Digestive System Physiological Phenomena
Mollusca / anatomy & histology*,  physiology
Time Factors
Tomography, X-Ray Computed*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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