Trunk movements during locomotion in the marsupial Monodelphis domestica (didelphidae)

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dc.contributor.author Pridmore, Peter A. en_US
dc.date.accessioned 2007-04-06T18:47:32Z
dc.date.available 2007-04-06T18:47:32Z
dc.date.issued 1992-02 en_US
dc.identifier.citation Pridmore, Peter A. (1992)."Trunk movements during locomotion in the marsupial Monodelphis domestica (didelphidae)." Journal of Morphology 211(2): 137-146. <http://hdl.handle.net/2027.42/50285> en_US
dc.identifier.issn 0362-2525 en_US
dc.identifier.issn 1097-4687 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/50285
dc.description.abstract The small didelphid cmarsupial, Monodelphis domestica , uses a lateral sequence walk during slow treadmill locomotion and gradually shifts to a trot as speed increases. At higher speeds it changes abruptly to a half-bound. Cinematographic records suggest significant lateral bending but no sagittal bending of the trunk during the slow walk and a reduced amount of lateral bending during the fast walk. There is slight lteral, but no sagittal, bending during the trot. Sagittal bending is obvious during the half-bound, but no lateral bending is evident. Cineradiography confirms that the vertebral column of the trunk bends laterally during the slow walk. Bending occurs throughout the trunk region, but seems to be most pronounced in the anterior lumbar region. Associated with this bending of the trunk is substantial rotation of the pelvic girdle in the plane of yaw. Pelvic rotation is synchronized with the locomotor cycle of hindlimbs. Each side of the pelvis rotates forward during the recovery phase of the ipsilateral hindlimb and backward during the contact phase of this limb. Information on locomotor trunk movements in other limbed tetrapods is limited. The pattern of trunk bending found in Monodelphis , however, is consistent with that reported in the placental mammal Felis catus and in some lepidosaurian reptiles. This suggests that sagittal bending did not replace lateral bending during the evolution of mammals, as is sometimes suggested. Rather, bending in the vertical plane seems to have been added to lateral bleeding when the ancestors of extant mammals acquired galloping and bounding capabilities. en_US
dc.format.extent 789441 bytes
dc.format.extent 3118 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.publisher Wiley Subscription Services, Inc., A Wiley Company en_US
dc.subject.other Life and Medical Sciences en_US
dc.subject.other Cell & Developmental Biology en_US
dc.title Trunk movements during locomotion in the marsupial Monodelphis domestica (didelphidae) en_US
dc.type Article en_US
dc.rights.robots IndexNoFollow en_US
dc.subject.hlbsecondlevel Molecular, Cellular and Developmental Biology en_US
dc.subject.hlbtoplevel Health Sciences en_US
dc.subject.hlbtoplevel Science en_US
dc.description.peerreviewed Peer Reviewed en_US
dc.contributor.affiliationum Division of Biological Sciences, University of Michigan, Ann Arbor, Michigan 48109 ; Department of Geology, Australian National University, Canberra, A.C.T. 2601, Australia en_US
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/2027.42/50285/1/1052110203_ftp.pdf en_US
dc.identifier.doi http://dx.doi.org/10.1002/jmor.1052110203 en_US
dc.identifier.source Journal of Morphology en_US
dc.owningcollname Interdisciplinary and Peer-Reviewed
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