Document Detail


Cardiovascular system of the Majidae (Crustacea: Decapoda).
MedLine Citation:
PMID:  20566318     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The cardiovascular system of majid crabs was mapped using corrosion casting techniques. The general form of the circulatory system was comparable to that of other malacostracan crustaceans, but with distinct differences between several arterial systems. The anterior aorta exited from the anterior surface of the heart supplying hemolymph to the antennae, eyestalks, gastric muscles and brain. This artery was more complex compared with other decapods. The anterolateral arteries exited from the anterior dorsal surface of the heart and supplied hemolymph to the hypodermis, stomach, antennal gland and mandibular muscles. The hepatic arteries were larger and more complex compared with other decapod families, branching profusely within the hepatopancreas and gonads. The small posterior aorta exited from the posterior-ventral surface of the heart. Standard sex-specific differences in this artery were observed. Exiting from the ventral surface of the heart, the sternal artery supplied each pereiopod in a segmental arrangement. The sternal artery arrangement was different to other brachyuran crabs, possibly a symplesiomorphy with segmented ancestors. In accordance with anatomical descriptions of blue crabs and Cancer crabs it would also seem appropriate to classify the circulatory system of the Majidae as one that is "incompletely closed".
Authors:
Iain J McGaw; Jonathon H Stillman
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Arthropod structure & development     Volume:  39     ISSN:  1873-5495     ISO Abbreviation:  Arthropod Struct Dev     Publication Date:  2010 Sep 
Date Detail:
Created Date:  2010-09-13     Completed Date:  2011-01-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100972232     Medline TA:  Arthropod Struct Dev     Country:  England    
Other Details:
Languages:  eng     Pagination:  340-9     Citation Subset:  IM    
Copyright Information:
Crown Copyright © 2010. Published by Elsevier Ltd. All rights reserved.
Affiliation:
Ocean Sciences Centre, Memorial University, St John's, NL, Canada. ijmcgaw@mun.ca
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MeSH Terms
Descriptor/Qualifier:
Animals
Aorta / anatomy & histology
Arteries / anatomy & histology
Blood Circulation
Cardiovascular System / anatomy & histology*
Decapoda (Crustacea) / anatomy & histology*,  physiology
Female
Gills / anatomy & histology,  blood supply
Hemolymph / physiology
Male
Sex Characteristics

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


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