A treatise on special and general anatomy: in two volumes (Volume 2).

  • Horner, William E. (William Edmonds), 1793-1853.
Date:
1830
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on special and general anatomy: in two volumes (Volume 2). Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    external part is rather more consistent and yellow than the internal. The granulations seem to have an intimate con- nexion with the veins, as they are easily penetrated by fluid injections from the latter. Reputed excretory ducts for these bodies have been found going to the testicles, to the pelvis of the kidneys, and to the thoracic duct, but no weight is now attached to such assertions. Of the Bladder. The Bladder, {Vesica Urinaria,) the reservoir for the urine, is placed in'the pelvis, just behind the symphysis of the pubes. When pressed upon, as it commonly is, by the adjacent viscera, it is flattened somewhat before and behind; but, removed from the body and inflated, it is an elongated sphere or oval; the greatest diameter of which is vertical, in regard to the linea ilio-pectinea. The superior end of the bladder is called the upper fundus, and the lower end the infe- rior fundus; the latter is rather more obtuse than the other; and between the two is the body. The neck of the bladder is its place of junction with the urethra. The form of the bladder is influenced by age and by sex; in very young in- fants it is cylindroid, and, owing to the smallness of the pelvis, rises up almost wholly into the abdomen. In the adult woman, who has frequently born children, it is nearly spherical, has its greatest diameter transverse,* and is more capacious than in man. The bladder is bounded in front by the pubes, above by the small intestine, behind by the rectum, and below by the prostate gland and the vesiculae seminales. From its supe- rior end there proceeds to the umbilicus a long conical liga- ment, the urachus, which is placed between the linea alba and the peritoneum, and produces a slight elevation or doubling of the latter. In mankind the urachus is solid; some very rare cases, however, are reported in which it has been hollow, so as to permit the urine to flow through it from the bladder. This vicious conformation has generally been attended with a congenital obstruction of the urethra, t * H. Cloquet, Anat. Descrip. f Sabatier, Anat. vol. iii. p. 19.