Dorschner W, Stolzenburg J U, Rassler J
Department of Urology, Leipzig University, FRG.
Urol Int. 1994;52(4):189-93. doi: 10.1159/000282606.
In an anatomical study of serial sections of the bladder neck taken from 65 cadavers of all age groups the ventral longitudinal muscle system is shown as a single unit. It is characterized by two origins and two insertions. A detailed description is given. It should be emphasized that there is no connection between this muscle system and any muscle layer of the urinary bladder. The muscle bundles of the upper part of the ventral longitudinal urethral muscle system cross in stages the whole ventral circumference of the trigonal sphincter muscle with functional consequences. The lower part is closely combined with the lumen of the urethra. During contraction the muscle could be able to open the musculus sphincter trigonalis and the musculus sphincter urethrae; we called them musculus dilator urethra. Summarizing all presented histomorphological results of parts 1-4 of these papers [Dorschner et al.; Urol Int 52;1994] a new theory of micturition and its initiation is presented.
在一项对取自各年龄组65具尸体膀胱颈连续切片的解剖学研究中，腹侧纵肌系统显示为一个单一单元。它的特点是有两个起点和两个止点。文中给出了详细描述。应当强调的是，该肌肉系统与膀胱的任何肌层均无联系。腹侧纵尿道肌系统上部的肌束逐步穿过三角括约肌的整个腹侧圆周，产生功能影响。下部与尿道管腔紧密结合。收缩时，该肌肉可能能够打开三角肌括约肌和尿道括约肌；我们称它们为尿道扩张肌。总结这些论文[多尔施纳等人；《泌尿学国际》52卷；1994年]第1 - 4部分所呈现的所有组织形态学结果，提出了一种新的排尿及其起始理论。
