Static lung compliance and body pressures in Tupinambis merianae with and without post-hepatic septum

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorKlein, Wilfried
dc.creatorAbe, Augusto Shinya
dc.creatorPerry, Steven F.
dc.date2014-05-27T11:20:38Z
dc.date2016-10-25T18:18:36Z
dc.date2014-05-27T11:20:38Z
dc.date2016-10-25T18:18:36Z
dc.date2003-04-15
dc.date.accessioned2017-04-06T01:05:32Z
dc.date.available2017-04-06T01:05:32Z
dc.identifierRespiratory Physiology and Neurobiology, v. 135, n. 1, p. 73-86, 2003.
dc.identifier1569-9048
dc.identifierhttp://hdl.handle.net/11449/67263
dc.identifierhttp://acervodigital.unesp.br/handle/11449/67263
dc.identifier10.1016/S1569-9048(03)00063-6
dc.identifierWOS:000182766000008
dc.identifier2-s2.0-0346668311
dc.identifierhttp://dx.doi.org/10.1016/S1569-9048(03)00063-6
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/888738
dc.descriptionThe surgical removal of the post-hepatic septum (PHS) in the tegu lizard, Tupinambis merianae, significantly reduces resting lung volume (VLr) and maximal lung volume (VLm) when compared with tegus with intact PHS. Standardised for body mass (MB), static lung compliance was significantly less in tegus without PHS. Pleural and abdominal pressures followed, like ventilation, a biphasic pattern. In general, pressures increased during expiration and decreased during inspiration. However, during expiration pressure changes showed a marked intra- and interindividual variation. The removal of the PHS resulted in a lower cranio-caudal intracoelomic pressure differential, but had no effect on the general pattern of pressure changes accompanying ventilation. These results show that a perforated PHS that lacks striated muscle has significant influence on static breathing mechanics in Tupinambis and by analogy provides valuable insight into similar processes that led to the evolution of the mammalian diaphragm. © 2003 Elsevier Science B.V. All rights reserved.
dc.languageeng
dc.relationRespiratory Physiology and Neurobiology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCompliance
dc.subjectMechanics of breathing
dc.subjectPost-hepatic septum
dc.subjectReptile
dc.subjectReptiles
dc.subjectTegu lizard (Tupinambis merianae)
dc.subjectVentilation
dc.subjectabdominal pressure
dc.subjectanimal experiment
dc.subjectbody mass
dc.subjectbreathing mechanics
dc.subjectcontrolled study
dc.subjectdevelopmental stage
dc.subjectforced expiratory volume
dc.subjecthysteresis
dc.subjectlizard
dc.subjectlung compliance
dc.subjectlung volume
dc.subjectmuscle injury
dc.subjectnewborn
dc.subjectnonhuman
dc.subjectpriority journal
dc.subjectsmooth muscle
dc.subjectthorax pressure
dc.subjectAbdominal Cavity
dc.subjectAnimals
dc.subjectLiver
dc.subjectLizards
dc.subjectLung
dc.subjectLung Compliance
dc.subjectMuscle, Smooth
dc.subjectPleural Cavity
dc.subjectPressure
dc.subjectPulmonary Ventilation
dc.titleStatic lung compliance and body pressures in Tupinambis merianae with and without post-hepatic septum
dc.typeOtro


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