Which of the following best describes why it is necessary that the testes descend into the scrotum?
Jaundice, implantation
Temperature, fertility
Infection, sterility
Cyanosis, ischemia
The Correct Answer is B
A. Jaundice, implantation: Jaundice and implantation are unrelated to testes or scrotum.
B. Temperature, fertility: The scrotum maintains a temperature slightly cooler than body temperature, which is necessary for sperm production and fertility.
C. Infection, sterility: While infection can cause sterility, the descent of the testes primarily addresses temperature regulation.
D. Cyanosis, ischemia: These are circulatory issues not directly related to testicular descent.
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Related Questions
Correct Answer is D
Explanation
A. Early onset of menstrual cycle:
While it may affect long-term reproductive health, it does not cause sterility.
B. Torn hymen:
A torn hymen does not affect fertility.
C. UTI (urinary tract infection):
While painful, a UTI does not cause infertility.
D. Repeated episodes of untreated sexually transmitted infections:
Untreated STIs can lead to pelvic inflammatory disease (PID), scarring, and infertility.
Correct Answer is B
Explanation
A. Prevents erection: Erection is regulated by blood flow and nerves, not the vas deferens.
B. Induces sterility: Vasectomy (cutting the vas deferens) prevents sperm from being ejaculated, resulting in sterility.
C. Interferes with testosterone secretion: Testosterone is produced by the testes, unaffected by vasectomy.
D. Prevents orgasm: Vasectomy does not affect the ability to have orgasms.
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