Dorschner W, Stolzenburg J U
Department of Urology, Leipzig University, FRG.
Urol Int. 1994;53(1):34-7. doi: 10.1159/000282628.
Theories of seminal emission and ejaculation based on morphology especially of the dorsal longitudinal urethral muscle system are found very infrequently in the literature. Our own examinations carried out on serial sections of the whole distal urethral complex taken from 50 male and 15 female autopsy preparations prove that the dorsal longitudinal urethral muscle system represents an independent smooth muscle. In the female, the muscle system runs outside the sphincter system. In the male, it is the direct continuation of the musculature of the ejaculatory ducts and its expansion is generally restricted to the urethra below the colliculus seminalis. Within the urethra the urethral crest is protruded. Differences in the degree of the formation of the muscle in various age groups will be described. For this newly described muscle structure, we suggest the term musculus ejaculatorius as, due to purely anatomic reasons, an involvement in the process of ejaculation seems to be conclusive. A theory of seminal emission and ejaculation is given as a mass action of the musculature of the bladder neck.
基于形态学，尤其是背侧纵向尿道肌肉系统的遗精和射精理论在文献中极为罕见。我们对取自50例男性和15例女性尸检标本的整个远端尿道复合体连续切片进行的自身检查证明，背侧纵向尿道肌肉系统是一种独立的平滑肌。在女性中，该肌肉系统位于括约肌系统之外。在男性中，它是射精管肌肉组织的直接延续，其扩展通常局限于精阜下方的尿道。在尿道内，尿道嵴突出。将描述不同年龄组肌肉形成程度的差异。对于这种新描述的肌肉结构，我们建议使用“射精肌”这一术语，因为纯粹出于解剖学原因，其参与射精过程似乎是确凿无疑的。给出了一种作为膀胱颈部肌肉组织的质量作用的遗精和射精理论。
