Cullen W C, Fletcher T F, Bradley W F
J Urol. 1983 Jan;129(1):190-2. doi: 10.1016/s0022-5347(17)51980-1.
Tissues composing the lower urinary tract of the female cat were discribed and analyzed morphometrically. Statistical comparisons were made with the female dog using previously obtained canine morphometric data. Despite a superficial similarity, the cat differs from the dog in having a significant component of longitudinally oriented urethral smooth muscle and appreciably less striated urethral sphincter. It is suggested that the cat requires an active mechanism for overcoming continence due to an inherently smaller urethral lumen, compared to the dog. The implication of our morphometric findings is that urethral mechanics are different for the female cat and dog.
对雌性猫下尿路的组织进行了描述，并进行了形态计量学分析。使用先前获得的犬类形态计量学数据与雌性犬进行了统计学比较。尽管表面上有相似之处，但猫与狗的不同之处在于，其尿道平滑肌有很大一部分是纵向排列的，且横纹尿道括约肌明显较少。有人认为，与狗相比，猫由于尿道腔天生较小，需要一种主动机制来克服尿失禁。我们形态计量学研究结果的意义在于，雌性猫和狗的尿道力学不同。
