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Sustentacular Cells in Male Reproductive System

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Sustentacular Cells in Male Reproductive System

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Questions and Answers

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?

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?

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?

Secrete a viscous fluid containing fructose and clotting proteins Signup and view all the answers

Which gland secretion helps neutralize acidic substances for sperm protection during sexual arousal?

Bulbourethral glands Signup and view all the answers

What is the primary function of the blood-testis barrier formed by sustentacular cells?

Isolate developing gametes from immune responses Signup and view all the answers

Which of the following statements about the negative feedback system regulating testosterone levels is incorrect?

Decreased testosterone inhibits GnRH secretion Signup and view all the answers

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