Advanced Urinary System Quiz

Q1. During bladder filling, which functional combination favors urinary storage?

• Detrusor relaxation with maintained urethral outlet resistance
• External sphincter relaxation with maximal parasympathetic activity
• Detrusor contraction with complete ureteric obstruction
• Strong detrusor contraction with external sphincter relaxation

Q2. Which coordinated response is required for effective micturition?

• Ureteric contraction with detrusor relaxation only
• Detrusor contraction with urethral sphincter relaxation
• Contraction of both the detrusor and external urethral sphincter
• Detrusor relaxation with sphincter contraction

Q3. During hysterectomy, the ureter is particularly vulnerable near its relationship with which artery?

• Median sacral artery
• Superior gluteal artery
• Inferior mesenteric artery
• Uterine artery

Q4. In the male pelvis, the ureter passes inferior to which structure near the posterolateral aspect of the bladder?

• Ejaculatory duct
• Prostatic urethra
• Ductus deferens
• Round ligament of the uterus

Q5. Why does the bladder mucosa normally show folds when the bladder is empty while the trigone remains relatively smooth?

• Trigonal mucosa is firmly attached to the underlying muscle
• The trigone contains no epithelium
• The trigone is formed entirely by skeletal muscle
• The trigone lies outside the urinary bladder

Q6. A lesion affecting pelvic splanchnic parasympathetic pathways would most directly impair which bladder function?

• Somatic sensation from the perianal skin
• Detrusor contraction during micturition
• Production of urine by the kidneys
• Voluntary contraction of the external urethral sphincter

Q7. A lesion of the pudendal nerve would most directly compromise which urinary mechanism?

• Urine production by renal nephrons
• Voluntary external urethral sphincter contraction
• Ureteric peristalsis
• Parasympathetic detrusor contraction

Q8. Which anatomical mechanism normally limits retrograde flow of urine from the bladder into the ureters during bladder contraction?

• Compression of the oblique intramural ureter
• Closure of the renal pelvis
• Contraction of the external urethral sphincter
• Contraction of puborectalis

Q9. When markedly distended, the urinary bladder can rise superior to which bony landmark?

• Ischial tuberosity
• Ischial spine only
• Pubic symphysis
• Coccyx

Q10. Which statement best integrates the pelvic anatomy of the urinary system?

• The pelvic ureters, bladder, urethra, and sphincters coordinate urine transport, storage, and elimination
• The urinary bladder produces urine and the kidneys store it
• The urethra transports urine from the kidneys directly to the bladder
• Urinary continence depends exclusively on autonomic nerves with no somatic contribution