Splanchnology and Applied Anatomy: Ureter

Ureter

URETER
(Ox,Sheep, Goat, Horse, Pig, Dog, Rabbit, Fowl)

The ureters are the excretory ducts of the kidneys and each begins at the junction of the calyces majores and terminates at the bladder
It is about 6 to 8 mm in diameter. The right ureter emerges out of the hilus of the right kidney from its ventral face, runs inwards, gains the middle of the medial border of the kidney and runs along it
The left ureter emerges out of the hilus on the antero-lateral aspect of the dorsal face, crosses over this face medially and gains the medial border and runs backwards.
Each ureter consists of abdominal and pelvic parts
The abdominal part runs backwards and inwards, the right being related to the lateral face of the caudal vena cava and the left to the aorta
Then it passes back in the sub-peritoneal tissue on the ventral face of the psoas muscle crosses the external iliac artery and enters the pelvic cavity
The pelvic part passes backwards and downwards on the lateral wall of pelvic cavity, turns inward and pierces the superior wall of the bladder near the neck
In the male, the pelvic part enters the genital fold and crosses vas deferens whereas in the female it is situated in the dorsal part of the broad ligament of the uterus

They are simple tubes start from the hilus of the kidneys at the middle of the medial border and terminate at the dorsal aspect of the bladder on either side

The ureter is white in colour. It may be divided into a renal part and a pelvic part.
The renal part embedded in the ventral surface of the kidney and the pelvic part runs backward in relation to the vas deferens or oviduct
It opens into the urodeum of the cloaca, internal to the opening of the vas deferens or oviduct

Last modified: Friday, 16 December 2011, 1:37 PM

VAN 221: Veterinary Splanchnology and Applied Anatomy (1+1)