Anatomical, histological and morphometric data on the urethral muscle (musculus urethralis) of the male calf

The gross and microscopic anatomy and the morphometry of the Musculus urethralis in the male calf Parts of the male urethra were examined topographically and microscopically in the male calf. The thickness and the straight course of the fibres of the urethral muscle could best be analyzed in the ventromedian region of the urethra. The results produced data on the surface area and the distribution of the two primary metabolic fibre types. This showed that the m. urethralis is capable of contracting quickly with predominantly anaerobic metabolism. The different relationships between type I and type II fibres could be determined also in relation to the position of the disseminate part of the prostate.