Batterjee Medical College - Anatomy MCQ Package: Urinary Bladder & Ureter

What's Inside the Package

SECTION 1: HIGH-YIELD MCQs (20 Questions)

• A. Pelviureteric junction, brim of lesser pelvis, vesicoureteric junction ✓
• B. Renal sinus, bifurcation of aorta, bladder neck
• C. PUJ, crossing of gonadal vessels, VUJ
• D. Upper abdominal, mid-ureter, intramural ureter
• E. Renal hilum, sacroiliac joint, internal urethral orifice

HINT: "PBV" - Pelviureteric junction, pelvic Brim, Vesicoureteric junction.

1. PUJ - where the renal pelvis meets the ureter
2. Pelvic brim - where the ureter crosses the common iliac bifurcation
3. VUJ/intramural ureter - NARROWEST (3-4 mm average diameter), most common site of stone impaction (~70%)

• A. Sacroiliac joint
• B. Bifurcation of the common iliac artery ✓
• C. Crossing of the gonadal vessels
• D. Posterior to the inferior epigastric artery
• E. Anterior to the external iliac artery

HINT: Gonadal vessels are the "bridge" - they cross ANTERIOR to the ureter (ureter = water flowing under). At the pelvic brim, the ureter crosses the common iliac bifurcation.

• A. Laterally, from the gonadal artery
• B. Medially, from branches of the renal artery ✓
• C. Posteriorly, from the aorta
• D. Anteriorly, from the inferior mesenteric artery
• E. Inferiorly, from the internal iliac artery

HINT: "Medial - Posterior - Lateral" going from proximal to distal.

• A. T6-T9
• B. T10-T11
• C. T11-L1 ✓
• D. L2-L4
• E. S2-S4

HINT: Upper ureter T11-L1 = flank/loin pain. Lower ureter S2-S4 = groin/scrotum/labia pain.

• Upper/abdominal ureter: sympathetic T11, T12, L1 via celiac/aortorenal/mesenteric ganglia → pain referred to flank, loin, groin
• Lower/pelvic ureter: parasympathetic S2-S4 via inferior hypogastric plexus → pain referred to groin, scrotum/labia majora, inner thigh, tip of penis/clitoris (at VUJ)
• Key point: Ureteric peristalsis is MYOGENIC (pacemaker in minor calyces) - denervation does NOT abolish peristalsis or cause VUR.

• A. Mucosa (transitional epithelium) → Lamina propria → Muscularis (2 longitudinal + 1 circular) → Adventitia ✓
• B. Adventitia → Muscularis → Lamina propria → Urothelium
• C. Urothelium → Submucosa → Inner circular → Outer longitudinal → Serosa
• D. Urothelium → LP → Inner circular → Middle longitudinal → Outer circular → Adventitia
• E. Mucosa → Outer longitudinal → Middle circular → Inner longitudinal → Adventitia

HINT: Like the gut: Mucosa → LP → Muscle → Adventitia. Distal ureter appears as inner longitudinal + outer circular (the spirals are steep).

1. Mucosa: Urothelium (4-6 layers, "stellar" lumen on cross-section when empty) + lamina propria with blood vessels/nerves
2. Muscularis: 2 longitudinal layers separated by middle circular. In distal ureter, spirals become steep (inner longitudinal) and horizontal (outer circular).
3. Adventitia: Dense collagen + elastic fibers. Thickens distally → Waldeyer's sheath

• A. Urinary tract infection
• B. Vesicoureteral reflux ✓
• C. Urethral stricture
• D. Nephrolithiasis
• E. Ureteral duplication

HINT: Waldeyer sheath = muscle enveloping terminal ureter → fuses with detrusor → OBLIQUE intramural tunnel → flap-valve anti-reflux.

• Waldeyer's sheath wraps the terminal ureter, then its fibers coalesce with detrusor muscle
• The intramural ureter takes an oblique course (~1.5 cm tunnel) through the detrusor = anti-reflux flap valve
• On bladder filling/micturition: detrusor pressure compresses the intramural ureter shut
• Normal tunnel:width ratio must be >5:1 for adequate anti-reflux
• Neonates: intramural length only 0.5-0.8 cm (vs. 1.2-2.5 cm adults) → higher VUR rate
• Golf-hole ureteric orifice (grade 3) = highest reflux tendency; laterally displaced

• A. Lateral umbilical ligament
• B. Round ligament of the uterus
• C. Median umbilical ligament (obliterated urachus) ✓
• D. Medial umbilical ligament
• E. Pubovesical ligament

HINT: Three umbilical ligaments: Median (single, midline) = urachus. Medial (paired) = obliterated umbilical arteries. Lateral (paired folds) = inferior epigastric vessels.

• Patent urachus → urine drains from umbilicus at birth
• Urachal cyst → midline abdominal mass between umbilicus and bladder
• Urachal sinus → periumbilical discharge (open at umbilical end)
• Urachal diverticulum → opens into bladder apex

• A. Two ureteric orifices and the internal urethral orifice ✓
• B. Two ureteric orifices and the external urethral orifice
• C. One ureteric orifice, one ureteral orifice, and the internal urethral orifice
• D. The two ureteric orifices and the urachal opening
• E. Internal urethral orifice and the bilateral obturator foramina

HINT: UUI = Ureter + Ureter + Internal urethral orifice. The trigone is a triangle.

1. SMOOTH mucosa - no folds at any fill level (firmly adherent to muscularis)
2. Most vascular part of bladder (appears deeply colored endoscopically)
3. Only 2 muscle layers (continuation of ureteric longitudinal muscle, NOT detrusor)
4. Base = interureteric ridge (Mercier bar) connecting the 2 ureteric orifices, more prominent in males
5. Uvula vesicae in males - prostate elevation at internal urethral orifice

• Ureteric orifices are ~1-2 cm from midline
• Normal orifice position: medial trigone (grade 0 = cone/volcano shape). Lateralization → reflux.

• A. Inferior vesical artery
• B. Superior vesical artery (from obliterated umbilical artery) ✓
• C. Obturator artery
• D. Inferior epigastric artery
• E. Uterine artery

HINT: Superior vesical = proximal patent portion of umbilical artery (itself from internal iliac). The umbilical artery distal to this branch is obliterated = medial umbilical ligament.

• Superior vesical artery → from umbilical artery (proximal patent part) → internal iliac → supplies superior/anterosuperior bladder + distal ureter
• Inferior vesical artery → directly from internal iliac → supplies fundus, seminal vesicles, prostate (in females: vaginal artery equivalent)
• Venous drainage → vesical venous plexus → internal iliac veins (communicates with prostatic plexus in males)
• Lymphatics: Superolateral → external iliac; Neck/trigone → internal iliac nodes

• A. 150 mL B. 300 mL ✓ C. 500 mL D. 200 mL E. 600 mL

HINT: "5 and 3" rule: 500 mL max capacity, 300 mL first urge.

• A. Relaxes; contracts
• B. Contracts; contracts
• C. Contracts; relaxes ✓
• D. Relaxes; relaxes
• E. Contracts; no role

HINT: Micturition = parasympathetic (PSNS = P for pee). Storage = sympathetic ("fight or flight" = hold your bladder).

• A. Is lined by columnar epithelium
• B. Contains deep folds even when full
• C. Is smooth, firmly attached to underlying muscle with no mucosal folds ✓
• D. Is thicker with multiple additional epithelial layers
• E. Contains goblet cells for lubrication

HINT: Trigone = "no-fold zone." The mucosa is FIXED (no loose lamina propria), stays smooth regardless of fill level.

• A. PUJ; 8-10 mm
• B. Common iliac crossing; 5-6 mm
• C. Intramural VUJ; 3-4 mm ✓
• D. Mid-ureter near gonadal vessels; 4-5 mm
• E. Renal calyx; 2-3 mm

HINT: VUJ = narrowest point. Most stones lodge here (~70%). Stones < 4 mm: 80% pass spontaneously. > 6 mm: usually need intervention.

• A. Superolaterally (above and lateral)
• B. Inferomedially (below and medial) ✓
• C. At the same level as lower pole ureter
• D. Ectopically into the vagina or urethra
• E. Through a common sheath with the lower pole ureter

HINT: "The upper ureter falls down" → lower and medial in bladder. Upper pole → obstruction/ectopia. Lower pole → VUR.

• A. Para-aortic nodes
• B. Superficial inguinal nodes
• C. Internal iliac nodes ✓
• D. External iliac nodes
• E. Obturator nodes

• A. A true anatomical space lined by peritoneum on all sides
• B. A potential space between the pubic symphysis anteriorly and bladder posteriorly, containing prevesical fat and veins ✓
• C. Contains the prostatic urethra in males
• D. Bounded inferiorly by the perineal membrane
• E. Communicates directly with the peritoneal cavity

• A. When it crosses the pelvic brim
• B. Where it passes close to the uterine artery ('water under the bridge') ✓
• C. At the PUJ
• D. When it crosses the gonadal vessels
• E. At the VUJ

HINT: "Water under the bridge" - ureter (water) passes UNDER uterine artery (bridge), ~1.5-2 cm lateral to cervix.

• A. One circular layer
• B. Two layers everywhere
• C. Three layers everywhere
• D. Four histological layers everywhere
• E. Two layers at the trigone; three layers everywhere else ✓

HINT: Detrusor = inner longitudinal + middle circular + outer longitudinal (3 layers). At TRIGONE = only 2 (continuation of ureteric musculature). This distinction is repeatedly tested.

• A. Peristalsis initiated by sympathetic nerve impulses from the superior hypogastric plexus
• B. The pacemaker is located in the minor renal calyces ✓
• C. Denervation of the lower ureter causes VUR
• D. Peristalsis ceases after ureter excision
• E. The pacemaker is at the ureterovesical junction

• A. Passes lateral to the uterine artery and anterior to the rectum
• B. Runs medial to the ovary, then passes under the uterine artery, lateral to the uterosacral ligament, then along the lateral fornix of the vagina ✓
• C. Passes through the broad ligament anterior to the uterine artery
• D. Crosses the external iliac artery and runs through the uterosacral ligament
• E. Passes posterior to the uterus and lateral to the rectum

SECTION 2: PRINTABLE CHEATSHEET (included in PDF)

Ureter Key Facts

Bladder Key Facts

Clinical Pearls