Evolutionary derivation of the American lobster cardiovascular system: an hypothesis based on morphological and physiological evidence

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dc.contributor.authorCavey, Michael J.en
dc.contributor.authorWilkens, J. L.en
dc.contributor.authorYazawa, T.en
dc.contributor.departmentBiological Sciencesen
dc.contributor.facultyFaculty of Scienceen
dc.contributor.institutionUniversity of Calgaryen
dc.date.accessioned2006-08-14T19:40:01Z
dc.date.available2006-08-14T19:40:01Z
dc.date.issued1997
dc.description.abstractThe cardiovascular system of the American lobster includes a large muscular heart that pumps blood into seven arteries, each of which ramifies extensively. Portions of the system may be viewed as relatively primitive, while others are highly derived. We have confirmed earlier findings that the sternal artery is not a single vessel, but a paired structure. The sternal artery and its partner closely resemble the medial branches of the segmental lateral vessels from the dorsal abdominal artery in anterior segments of the abdomen, and they may be homologous. We report that the walls of the dorsal abdominal artery contain blocks of striated muscle cells and that the artery can be induced to contract in response to electrical stimulation or perfusion with proctolin. These observations provide the basis for an attempt to trace the evolution of the heart and arteries from that of primitive malacostracans to its state of development in lobsters.en
dc.description.refereedyesen
dc.format.extent1567992 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citationWilkens, J. L., Yazawa, T., Cavey, M. J. "Evolutionary derivation of the American lobster cardiovascular system: an hypothesis based on morphological and physiological evidence" Invertebrate Biology 116 (1) 30-38en
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/35102
dc.identifier.issn1077-8306
dc.identifier.urihttp://hdl.handle.net/1880/43414
dc.language.isoenen
dc.publisherBlackwell Publishing, Inc.en
dc.publisher.urlhttp://www.blackwellpublishing.com/journal.asp?ref=1077-8306
dc.subjectBiologyen
dc.subject.othercrustaceaen
dc.subject.otherhomarus americanusen
dc.subject.otherevolutionen
dc.subject.otherhearten
dc.subject.otherdorsal abdominal arteryen
dc.subject.othersternal arteryen
dc.titleEvolutionary derivation of the American lobster cardiovascular system: an hypothesis based on morphological and physiological evidenceen
dc.typejournal article
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