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dc.contributor.authorOelrich, Thomas M.en_US
dc.date.accessioned2007-04-06T17:44:35Z
dc.date.available2007-04-06T17:44:35Z
dc.date.issued1980-06en_US
dc.identifier.citationOelrich, Thomas M. (1980)."The urethral sphincter muscle in the male." American Journal of Anatomy 158(2): 229-246. <http://hdl.handle.net/2027.42/49683>en_US
dc.identifier.issn0002-9106en_US
dc.identifier.issn1553-0795en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/49683
dc.identifier.urihttp://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=7416058&dopt=citationen_US
dc.description.abstractThe male urethral sphincter is a striated muscle in contact with the urethra from the base of the bladder to the perineal membrane. The individual muscle fibers are 25 to 30% smaller than fibers of associated muscles and are embedded in connective tissue which obscures the visibility of the whole muscle. The muscle primordium is laid down around the urethra prior to the development of the prostate. Subsequently, the prostate develops as a diverticulum of the urethra and grows into the developing sphincter, thinning the overlying musculature. With the onset of puberty, accelerated growth of the prostate displaces the sphincter, with atrophy of the overlying muscle, resulting in what may appear to be isolated segments of the sphincter muscle distributed around the prostate. The prostate overgrows the anterior portion of the urethra and the associated sphincter muscle. There is no distinct superior fascia of the so-called urogenital diaphragm separating the sphincter muscle from the prostate. The fascia of the sphincter muscle is inseparable from the prostatic sheath, is oriented vertically, and passes through the urogenital hiatus to unite with the fascia of the pudendal canals at the isochiopubic rami. Thus, the sphincter muscle is a component of a bladder-urethra-prostate-sphincter unit which lies within the pelvis, in the urogenital hiatus, and rests upon the perineal membrane. The concept of a urogenital diaphragm is not borne out by this study.en_US
dc.format.extent1766496 bytes
dc.format.extent3118 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.publisherWiley Subscription Services, Inc., A Wiley Companyen_US
dc.subject.otherLife and Medical Sciencesen_US
dc.subject.otherCell & Developmental Biologyen_US
dc.titleThe urethral sphincter muscle in the maleen_US
dc.typeArticleen_US
dc.rights.robotsIndexNoFollowen_US
dc.subject.hlbsecondlevelMedicine (General)en_US
dc.subject.hlbtoplevelHealth Sciencesen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDepartment of Anatomy, 3736 Medical Science II, The University of Michigan, Ann Arbor MI 48109en_US
dc.identifier.pmid7416058en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/49683/1/1001580211_ftp.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1002/aja.1001580211en_US
dc.identifier.sourceAmerican Journal of Anatomyen_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


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