Ijmb Model Questions Vol1 2017 Biology Question 9

Practice essay / theory question 9 from the 2017 Ijmb Model Questions Vol1 Biology examination. This question covers Reproduction .

Ijmb Model Questions Vol1 2017 Biology Essay / Theory

Topic: Reproduction

Question 9 IJMB_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • essay

A 28‑year‑old woman presents with a history of irregular menstrual cycles and difficulty conceiving. She reports that her cycles are often longer than 35 days and that she experiences scanty bleeding. Laboratory investigations reveal that her serum estradiol rises normally in the first half of the cycle but falls sharply after ovulation, while progesterone levels remain low throughout the luteal phase.

Question Parts

( a )

Explain the normal hormonal events that occur during the luteal phase of the menstrual cycle and describe how these hormones prepare the endometrium for possible implantation.

( b )

Discuss how low progesterone levels during the luteal phase, as observed in this patient, can lead to infertility.

( c )

Based on the laboratory findings, infer the likely hormonal profile (estradiol and progesterone) throughout the cycle for this woman and explain why anovulation is the most probable cause of her infertility.

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About This Question

This is Ijmb Model Questions Vol1 2017 Biology Question 9. It is one of the essay questions from the 2017 Ijmb Model Questions Vol1 Biology examination.

The question covers Reproduction .

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