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The two ureteral openings and the urethral opening define which triangular region of the bladder?
AThe bladder fundus
BThe rugae folds
CThe detrusor plate
DThe trigone region
Answer & Solution
Correct answer: D. The trigone region
1. The urethra begins inferior and central to the two ureteral openings.
2. The three points form a triangular area at the bladder's base called the trigone.
3. The name shares its root with trigonometry, a useful memory hook.
_Source: OpenStax Anatomy and Physiology (CC BY 4.0), Ch 25 "The Urinary System", section Urethra_
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