Observations on spasm of the canals for the food, bile, and urine / [Alexander Monro].

  • Monro, Alexander, 1773-1859.
Date:
1826
Catalogue details

Licence: Public Domain Mark

Credit: Observations on spasm of the canals for the food, bile, and urine / [Alexander Monro]. Source: Wellcome Collection.

    11/54 (page 7)
    prostate gland to the under and inner part of the symphysis pubis. These triangular muscles are thin, of a deep red colour, and, on the inside, separated about an inch from each other. They are covered by the ligaments of the prostate, from the outer and under parts of which ligaments they take their ori¬ gin. Like these ligaments, they are insulated, having on their outside the little depressions of the ilio-vesical fascia; and, on their inside, the membrane of the infundibulum, or digital ca¬ vity. They are separated at the fore-part by a large plexus of veins, and by the cribriform fascia, which divides them from the muscles described by Wilson. Their inferior surface faces to¬ wards the prostate gland, where there is interposed between the gland and the muscles a plexus of veins, formed by the bran¬ ches into which the vena dorsalis penis divides, on passing through the cribriform fascia. Each muscle is divided by a few veins, into two portions, the superior and inferior; the superior deriving its origin from the upper part of the prostatic ligament, close to its connection with the symphysis pubis; the inferior, arising from the lower end of the ligament, contiguous to its attachment to the prostate. The superior fibres of this muscle of the right side pass backwards to the fore-part of the neck of the bladder, and, about an inch behind the prostate gland, cross over the corresponding fibres of the left side, spreading out on the lateral and fore-parts of the bladder. The inferior and largest portion of this muscle extends almost directly backwards, in the form of a triangle, the base of which is attached to the neck of the bladder, where it is intimately connected to its fel¬ low. From this base, after being connected to its fellow by a few cross slips of fibres, it radiates in several directions. The most internal fibres run almost parallel to each other, and, with the fibres of the opposite muscle, proceed along the fore-part of the bladder, over other fibres, originating from the prostate. Some of these parallel fibres reach as far as the base of the urachus, into which a few are inserted. The most exterior fibres embrace the neck of the bladder, and mingle with those of the back part, where a few' assist in forming the transverse fibres of the inner stratum.