urachus

The lowest part of the allantoic pedicle (or the "urachus") remains hollow, and forms the bladder.

The Evolution of Man — Volume 2 Ernst Heinrich Philipp August Haeckel 1876

It also has a narrow canal (the urachus) which serves to remove the urine of the foetus; in fact the subsequently formed bladder takes its origin from a dilation of the urachus.

The Veterinarian Charles James Korinek

In this disease, inflammation of the joints and open urachus are almost always co-existent.

The Veterinarian Charles James Korinek

TREATMENT: In the treatment of this disease, we have to attend to constitutional disturbances, inflamed joints, open urachus and complications such as constipation and diarrhoea.

The Veterinarian Charles James Korinek

Occasionally foals two or three months old which have the urachus closed and are in an apparently healthy condition contract this disease in a form of painful swelling of the joints.

The Veterinarian Charles James Korinek

In very rare cases open urachus may exist without any joint inflammation.

The Veterinarian Charles James Korinek

As examples of the former may be mentioned that in which the organ is deficient in front, and has become everted and protruded like a fungous mass through an opening at the median line of the hypogastrium; that in which the rectum terminates in the bladder posteriorly; and that in which the foetal urachus remains pervious as a uniform canal, or assumes a sacculated shape between the summit of the bladder and the umbilicus.

Surgical Anatomy Joseph Maclise

The vertex of the bladder is joined to the umbilicus by the remains of the urachus which forms the middle umbilical ligament, a fibromuscular cord, broad at its attachment to the bladder but narrowing as it ascends.

XI. Splanchnology. 3b. 3. The Urinary Bladder 1918

The remainder of the vesico-urethral portion forms the body of the bladder and part of the prostatic urethra; its apex is prolonged to the umbilicus as a narrow canal, which later is obliterated and becomes the medial umbilical ligament (urachus).

XI. Splanchnology. 3. The Urogenital Apparatus 1918

There is a case described 6.328 of a man who evidently suffered from a patent urachus, as the urine passed in jets as if controlled by a sphincter from his umbilicus.

Anomalies and Curiosities of Medicine 1896