Diseases of the bladder and urethra in women.

  • Skene, Alexander J. C. (Alexander Johnston Chalmers), 1838-1900.
Date:
1887
Catalogue details

Licence: Public Domain Mark

Credit: Diseases of the bladder and urethra in women. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    into three, which, although intimately Interlacing, can nevertheless be dissected apart. The external fibres are longitudinal, forming the detrusor urincB; the internal set is also longitudinal but very delicate ; and the middle fibres are circular and form the .sphincter vesiccF^ described by some as a band of muscular fibres one-eighth to one-half an inch thick, whose activity, according to these observers, prevents, in women, the escape of urine (Coulson). Kuss claims that the constrictor urethrae is the effective muscle in this act. In a case of vesico-vaginal fistula where the sphincter vesicae was destroyed, the urine could still be retained, perhaps by the muscu- larity of the urethra. All the vesical muscular fibres are involuntary and non-striated. The function of the sphincter vesicae is said to be performed by the closing to- gether of the longitudinal folds of the tissues at the junction of the bladder and urethra, or by the trans- verse semicircular folds that close over each other. At the base of the bladder two little muscular slips .arise from the portion usually designated as the sphinc- ter vesicae, and find insertion about the vesical open- ings of the ureters. These muscular fasciculi are but imperfectly developed in the female, and probably have little if any specific action. The lining or mucous coat of the bladder is like that of the ureters and urethra. It consists of a base- ment membrane, supporting three layers of epithe- lium : flat and laminated externally; pyriform and ^'tailed beneath these; and, deepest, a layer of