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Questions and Answers
What is the primary function of sustentacular cells in the seminiferous tubules?
What is the primary function of sustentacular cells in the seminiferous tubules?
- Act as a blood-testis barrier against immune responses (correct)
- Facilitate sperm release into the lumen
- Produce testosterone and inhibin hormones
- Provide structural support for spermatogenic cells
How does the negative feedback system regulate testosterone levels in the male reproductive system?
How does the negative feedback system regulate testosterone levels in the male reproductive system?
- Decreased testosterone inhibits GnRH, leading to decreased LH and testosterone production
- Increased testosterone stimulates GnRH, leading to increased LH and testosterone production
- Increased testosterone inhibits GnRH, leading to decreased LH and testosterone production (correct)
- Decreased testosterone stimulates GnRH, leading to increased LH and testosterone production
Which accessory gland secretion contributes to sperm motility and viability?
Which accessory gland secretion contributes to sperm motility and viability?
- Seminal vesicles
- Prostate gland (correct)
- Bulbourethral glands
- All of the above
What is the primary function of the seminal vesicles in the male reproductive system?
What is the primary function of the seminal vesicles in the male reproductive system?
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Which gland secretion helps neutralize acidic substances for sperm protection during sexual arousal?
Which gland secretion helps neutralize acidic substances for sperm protection during sexual arousal?
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What is the primary function of the blood-testis barrier formed by sustentacular cells?
What is the primary function of the blood-testis barrier formed by sustentacular cells?
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Which of the following statements about the negative feedback system regulating testosterone levels is incorrect?
Which of the following statements about the negative feedback system regulating testosterone levels is incorrect?
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