Ijmb Model Questions Vol1 2020 Biology Question 9

Practice essay / theory question 9 from the 2020 Ijmb Model Questions Vol1 Biology examination. This question covers Human Reproduction, Endocrine Regulation, Male Infertility .

Ijmb Model Questions Vol1 2020 Biology Essay / Theory
Topics: Human Reproduction Endocrine Regulation Male Infertility
Question 9 IJMB_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • essay

A 28‑year‑old male presents with reduced fertility. Investigations reveal a pituitary macroadenoma that secretes excess prolactin (hyperprolactinaemia).

Question Parts

( a )
Explain the normal hormonal regulation of spermatogenesis, naming the hypothalamic, pituitary and testicular hormones involved and their feedback relationships.
( b )
Describe how excess prolactin from the adenoma disrupts this regulation and leads to the observed infertility. Include the effect on gonadotropin release and downstream testicular function.
( c )
Outline two management strategies (pharmacological and surgical) for restoring fertility in this patient, indicating the rationale for each.

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About This Question

This is Ijmb Model Questions Vol1 2020 Biology Question 9. It is one of the essay questions from the 2020 Ijmb Model Questions Vol1 Biology examination.

The question covers Human Reproduction, Endocrine Regulation, Male Infertility .

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