Question at position 14 The ureter carries urine from the urinary bladder to the outside of the body.TrueFalseSingle choice
A
True
B
False

Question

Question at position 14 The ureter carries urine from the urinary bladder to the outside of the body.TrueFalse

BlackTom AI · Accepted Answer

Ureter transports urine from the kidneys into the urinary bladder, not from the bladder to the outside of the body.

1. Relevant knowledge points and concepts
- Renal tract sequence: kidneys → ureters → urinary bladder → urethra → external urethral meatus.
- Ureters are paired muscular tubes that conduct urine by peristalsis from each renal pelvis to the urinary bladder.
- The urethra is the single tube that drains urine from the bladder to the outside; sphincters control release.

2. Step-by-step reasoning
- Identify the structures named in the statement: ureter and urinary bladder.
- Recall anatomical direction of flow: urine produced in kidneys collects in renal pelvis, flows down the ureter into the bladder for storage.
- When urine is expelled, it leaves the bladder through the urethra to the exterior.
- Therefore, the claim that “the ureter carries urine from the urinary bladder to the outside of the body” reverses the normal direction and confuses ureter with urethra.

3. Intermediate steps / details (no numerical calculations required)
- Each kidney has one ureter; ureters enter bladder posterolaterally and use one-way muscular contractions to prevent backflow.
- Bladder stores urine until micturition is initiated; the internal and external urethral sphincters regulate passage into the urethra.

4. Why the correct answer is correct
- The correct answer is False because the ureter’s anatomical function is to bring urine into the bladder. It does not conduct urine from the bladder to the exterior; that is the urethra’s role.

5. Why the other option is incorrect
- “True” would imply the ureter directs urine outward from the bladder, which contradicts established urinary tract anatomy and physiology. That description incorrectly assigns the urethra’s function to the ureter.

6. Conclusion
- The statement is false. This conclusion matches the provided correct answer: False.

Question at position 14 The ureter carries urine from the urinary bladder to the outside of the body.TrueFalseSingle choice

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