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Questions and Answers
Which segment of the ureter is located over the sacrum?
Which segment of the ureter is located over the sacrum?
What is the length of the ureter in adults?
What is the length of the ureter in adults?
Where does the ureter pass over the pelvic brim?
Where does the ureter pass over the pelvic brim?
Where is the ureter situated in the retroperitoneum?
Where is the ureter situated in the retroperitoneum?
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How is the ureter divided according to international anatomic terminology?
How is the ureter divided according to international anatomic terminology?
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Which of the following statements about the abdominal parts of the ureters is correct?
Which of the following statements about the abdominal parts of the ureters is correct?
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Where does the surface anatomy of the ureter correspond to from the back?
Where does the surface anatomy of the ureter correspond to from the back?
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How many constrictions can be identified radiologically in each ureter?
How many constrictions can be identified radiologically in each ureter?
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Where is the first constriction of the ureter located?
Where is the first constriction of the ureter located?
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What are the potential sites of obstruction by ureteral calculi?
What are the potential sites of obstruction by ureteral calculi?
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Study Notes
Ureter Anatomy and Physiology
- The pelvic portion of the ureter is located over the sacrum.
- The total length of the ureter in adults usually measures around 25 to 30 centimeters.
- The ureter passes over the pelvic brim at the level of the L4 or L5 vertebrae.
- In the retroperitoneum, the ureter is situated posteriorly, lying against the abdominal wall and crossing over the psoas major muscle.
Ureteral Segmentation
- According to international anatomic terminology, the ureter is divided into abdominal and pelvic segments.
Abdominal Ureters
- The abdominal parts of the ureters are commonly found to have variations, but the typical description includes segments that follow the course of the kidneys.
- From a posterior perspective, the surface anatomy of the ureter corresponds to the transverse process of the lumbar vertebrae.
Constrictions and Obstructions
- Each ureter typically exhibits three notable constrictions identifiable in radiological imaging.
- The first constriction of the ureter is located at the junction where it transitions from the renal pelvis.
- Potential sites of obstruction caused by ureteral calculi include the renal pelvis, ureteropelvic junction, pelvic brim, and ureterovesical junction.
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Description
Test your knowledge of the anatomy and characteristics of the ureter with this quiz. Explore the length, diameter, and pathway of this important structure in the urinary system.
