Feline Prostatic Urethra

Above: Transverse section through the prostatic urethra of a cat (color added). The prostate is bi-lobed and located dorsal to the urethra. The urethral lumen (U) is surrounded by a combined lamina propria-submucosa (blue). Postprostatic striated urethralis muscle (brown) surrounds the urethra and is thick ventrally. Smooth muscle has an insignificant sphincter role at this level. A small amount of smooth muscle is present on the dorsal surface of the prostate and within trabeculae partitioning prostatic lobules (not evident here).

Below: Canine and feline prostate glands are compared in transverse sections through prostatic urethrae. Both prostate glands are bi-lobed but the canine gland is relatively larger and completely encircles the urethra.

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