Directions: In the following questions a statement of assertion is fo...
Urethra in human male act as urogenital canal as it carries urine, sperms and secretions of seminal vesicles, prostate and cowper’s glands.
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Directions: In the following questions a statement of assertion is fo...
Assertion: Urethra in human male acts as urinogenital canal.
Reason: Urethra carries only urine while sperms are carried by vasa deferentia only.
The correct answer is option C: If the assertion is true but the reason is false.
Explanation:
Urethra as a Urinogenital Canal:
- The urethra is a tube that connects the urinary bladder to the external opening of the penis in males.
- It serves as a common passage for the elimination of urine from the urinary bladder as well as the ejaculation of semen.
- During urination, urine passes through the urethra and gets expelled from the body.
- During ejaculation, semen, which contains sperm, is released through the urethra.
Urethra and Sperm Transport:
- The assertion states that the urethra carries both urine and sperm, while the reason states that sperms are carried by vasa deferentia only.
- This reason is incorrect because it overlooks the fact that the urethra in males also carries sperm during ejaculation.
- The vasa deferentia are tubes that transport sperm from the testes to the urethra, but they are not the exclusive carriers of sperm.
- The vasa deferentia join the urethra near the base of the urinary bladder, and during ejaculation, sperm from the vasa deferentia mix with seminal fluid from the accessory glands to form semen.
- This semen is then released through the urethra during ejaculation.
Conclusion:
- The assertion is true as the urethra in human males acts as a urinogenital canal, serving as a passage for both urine and semen.
- However, the reason is false as the urethra carries not only urine but also sperm during ejaculation.
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