A treatise on the urethra; its diseases, especially stricture, and their cure / [Benjamin Phillips].
- Benjamin Phillips
- Date:
- 1832
Licence: Public Domain Mark
Credit: A treatise on the urethra; its diseases, especially stricture, and their cure / [Benjamin Phillips]. Source: Wellcome Collection.
31/348 (page 11)
![1] the urethra, and the frequent occurrence of those distressing diseases to which the canal is subject. MEMBRANOUS PORTION. The second and narrower portion of the urethra which succeeds to the prostate is distin- guished by the term membranous; its form is cylindrical, and its length, like that of the other portions, has been differently estimated: by Boyer at twelve lines, by Ducamp at nine or ten, and by Lisfrane at seven to eleven. Much of this diversity may probably be attributed to the different points at which the admeasure- ment was taken. Its extent is not the same superiorly as inferiorly. Inferiorly, it is very short, limited in front by the posterior extre- mity of the bulb, and behind by the prostate ; so that superiorly its length is about an inch, and inferiorly four or five lines. The situation of this portion of the canal is directly under the symphisis of the pubis and the point of junction of the corpora cavernosa. Inferiorly, it is in immediate relation to the elands of Cowper and the acceleratores urine muscles; on the sides, it is in relation to the corpora cavernosa, separated from them only by a few muscular fibres, vessels, and nerves ; and over this portion the triangular ligament is](https://iiif.wellcomecollection.org/image/b3309388x_0031.jp2/full/800%2C/0/default.jpg)