Document Detail


Mechanical functions of setae from the mouth apparatus of seven species of decapod crustaceans.
MedLine Citation:
PMID:  15052599     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The mouthpart setae of seven species of decapods were examined with macro-video recordings and scanning electron microscopy. The general mechanical (nonsensory) functions of the different mouthparts are described and an account of their setation is given. This offers the possibility to determine the mechanical functions of the different types of setae. Pappose setae do not participate in food handling but in general make setal barriers. Plumose setae likewise do not contact food objects but assist in current generation. Papposerrate setae are rare but they were seen to assist in pushing food particles into the mouth. Serrulate setae are very common and mainly participate in gentle food handling and grooming. Serrate setae are used for more rough food manipulation and grooming. The roughest shredding, tearing, and manipulation of prey items are handled by the cuspidate setae. Simple setae seem to be divided into two populations with very different functions. On the maxillipeds of Panulirus argus they are used for shredding, tearing, and holding the food objects, but on the basis of maxilla 2 of three other species they appear to have very little mechanical influence and only when handling small prey items. The functional scheme seems to be consistent within the Decapoda.
Authors:
Anders Garm
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of morphology     Volume:  260     ISSN:  0362-2525     ISO Abbreviation:  J. Morphol.     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-03-30     Completed Date:  2004-11-23     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0406125     Medline TA:  J Morphol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  85-100     Citation Subset:  IM    
Copyright Information:
Copyright 2004 Wiley-Liss, Inc.
Affiliation:
Department of Zoomorphology, Zoological Institute, University of Copenhagen, 2100 CopenhagenØ, Denmark. algarm@zi.ku.dk
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MeSH Terms
Descriptor/Qualifier:
Animals
Brachyura / cytology,  physiology
Chemoreceptor Cells / physiology,  ultrastructure
Decapoda (Crustacea) / cytology*,  physiology
Feeding Behavior / physiology*
Female
Hair / physiology,  ultrastructure
Male
Mandible / physiology,  ultrastructure
Mastication / physiology*
Maxilla / physiology,  ultrastructure
Mechanoreceptors / physiology,  ultrastructure
Microscopy, Electron, Scanning
Mouth / physiology,  ultrastructure*
Palinuridae / cytology,  physiology
Species Specificity
Videotape Recording

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


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