Stolzenburg, Jens-Uwe and Neuhaus, Jochen and Liatsikos, Evangelos N. and Schwalenberg, Thilo and Ludewig, Eberhard and Ganzer, Roman (2006) Histomorphology of canine urethral sphincter systems, including three-dimensional reconstruction and magnetic resonance imaging. UROLOGY, 67 (3). pp. 624-630. ISSN 0090-4295, 1527-9995
Full text not available from this repository. (Request a copy)Abstract
Objectives. To present a detailed anatomic description and comparison of the smooth and striated urethral sphincter in male and female dogs. We performed a thorough histologic evaluation, three-dimensional reconstruction, and magnetic resonance imaging of the lower urinary tract of male and female dogs. Methods. The lower urinary tract anatomy was investigated in 16 male and 18 female dogs by serial sectioning, including immunohistochemical staining and three-dimensional reconstruction. Magnetic resonance imaging performed in 5 male and 5 female dogs before histologic investigation helped to demonstrate the anatomy in vivo. Results. A urethral sphincter muscle in both sexes existed without muscular connection to the pelvic floor. It ran circularly and consisted of an inner smooth and outer striated muscular part. In the female dog, the striated muscle encircled the urethra and vagina in the caudal third of the membranous urethra (musculus urethrovaginalis). A urinary diaphragm (diaphragma urogenitale) could not be found histologically or by magnetic resonance imaging. Conclusions. The dog is a suitable animal model for investigations of the urethral sphincter. In the female dog, attention should be given to the special topography of the musculus urethrovaginalis.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | LOWER URINARY-TRACT; STRIATED-MUSCLE; MALE DOG; MODEL; INNERVATION; CONTINENCE; STRESS; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Urologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 22 Feb 2021 09:52 |
| Last Modified: | 22 Feb 2021 09:52 |
| URI: | https://pred.uni-regensburg.de/id/eprint/34927 |
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