Concerning the relations and peritoneal covering of the ureter, all of the following are true EXCEPT:

Explanation

## Peritoneal Relations and Course of the Ureter ### Correct Statements (Three Options) **Key Point:** The following statements about the ureter are TRUE: - **(A) The ureter crosses the psoas major muscle at the level of the pelvic brim** — TRUE. The ureter descends on the anterior surface of psoas major and crosses the pelvic brim at the bifurcation of the common iliac artery (or the external iliac artery), a key surgical landmark. - **(B) The ureter is crossed anteriorly by the testicular/ovarian vessels** — TRUE. The gonadal vessels (testicular in males, ovarian in females) cross anterior to the ureter as they descend (testicular) or ascend (ovarian) in the retroperitoneum. This is a classic anatomical relationship tested in NEET PG. - **(C) The ureter is a retroperitoneal structure throughout its entire course** — TRUE. The ureter is retroperitoneal throughout its entire course from the renal pelvis to the bladder. Even within the pelvis, it remains retroperitoneal (subperitoneal). This is the standard teaching in Gray's Anatomy and Cunningham's Manual of Practical Anatomy. ### The Incorrect Statement (Correct Answer) **High-Yield:** Option **(D) is FALSE**. In females, the ureter does **NOT** pass medial to the ovary — it passes **lateral** to the ovary. The ureter descends along the lateral pelvic wall, passing lateral to the ovary, before turning medially beneath the broad ligament to reach the bladder. It passes approximately 1–2 cm lateral to the cervix and is crossed superiorly by the uterine artery ("water under the bridge" mnemonic). This is a critical surgical landmark during hysterectomy and other pelvic surgeries. ### Anatomical Course of the Ureter in the Female Pelvis | Structure | Relation to Ureter | |-----------|-------------------| | Ovary | Ureter passes **lateral** to the ovary | | Uterine artery | Crosses **superior** to the ureter (ureter passes beneath it) | | Cervix | Ureter passes ~1–2 cm lateral to the cervix | | Bladder | Ureter enters the trigone obliquely | **Clinical Pearl:** The mnemonic **"water (ureter) under the bridge (uterine artery)"** is essential for surgical anatomy. Ureteric injury during hysterectomy most commonly occurs at the point where the uterine artery crosses the ureter. The ureter's lateral relation to the ovary is why ovarian pathology (e.g., ovarian cysts) can displace or compress the ureter laterally. *Reference: Gray's Anatomy, 41st edition; Cunningham's Manual of Practical Anatomy, Vol. 2; Last's Anatomy, 12th edition.*