Ureters
Thick wall muscular tube which convey urine to Urinary bladder from Kidneys.
Lies in posterior abdominal wall.
Measures about 25 cm, 12.5 cm lies in Abdomen and 12.5 cm lies in pelvis.
It has three constrictions.
Course:
Starts from renal pelvis , gradually narrows and lower end of kidneys it become
ureter proper. It runs downwards and slightly medially over psoas major muscle
enters pelvis infront of termination of common internal iliac artery.
In lesser pelvis it runs bownwards and slightly backwards and laterally following
ant margin of greater sciatic notch. Opposite the ischial spine it runs forward
meidally towards urinary bladder.
Normal constriction:
1. At pelvic ureteric junction
2.at the brim of lesser pelvis
3.At its passage through its bladder wall.
Relations:
Blood supply:
It is supplied by three set of arteries:
1.Upper part receives branches from renal artery
2.Middle part receives branchs from the abdominal aorta
3.The pelvic part receives branches from vesical, middle rectal or uterine arteries.
Nerve supply:
Sympathetic N T10-L1
ParaSYMPATHETIC S2-4
posted by Hoichoi @ 8:22 AM
1 Comments
1 Comments:
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