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Where does the urethra extend from and what is its external opening called?
  • a)
    From the kidneys, external opening called urethral orifice
  • b)
    From the urinary bladder, external opening called urethral meatus
  • c)
    From the prostate gland, external opening called urethral sphincter
  • d)
    From the seminal vesicles, external opening called urethral meatus
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Where does the urethra extend from and what is its external opening ca...
The urethra originates from the urinary bladder and extends through the penis to its external opening, which is called the urethral meatus.
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Where does the urethra extend from and what is its external opening ca...
Urethra Overview
The urethra is a crucial part of the urinary system, responsible for transporting urine from the urinary bladder to the outside of the body.

Origin of the Urethra
- The urethra extends from the **urinary bladder**, which stores urine until it is ready to be excreted.

External Opening of the Urethra
- The external opening of the urethra is known as the **urethral meatus**.
- This opening allows for the passage of urine out of the body.

Distinction from Other Options
- **Option A** states it extends from the kidneys, which is incorrect. The kidneys produce urine, but the urethra does not originate there.
- **Option C** mentions the prostate gland as the origin, but this is misleading. The prostate gland surrounds the urethra in males but does not serve as the starting point.
- **Option D** refers to the seminal vesicles, which are involved in male reproductive fluid production, not the urethra's origin.

Conclusion
The correct answer is option **B** because the urethra indeed originates from the urinary bladder, and its external opening is correctly termed the urethral meatus. Understanding this anatomy is essential for grasping how urine is expelled from the body, which is vital knowledge for NEET and other medical examinations.
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Where does the urethra extend from and what is its external opening called?a)From the kidneys, external opening called urethral orificeb)From the urinary bladder, external opening called urethral meatusc)From the prostate gland, external opening called urethral sphincterd)From the seminal vesicles, external opening called urethral meatusCorrect answer is option 'B'. Can you explain this answer?
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