Hormonal control of egg maturation and ovulation

Steps:

• Hormone M stimulates egg production by promoting follicular growth in the ovaries.
• Follicle-stimulating hormone (FSH) is the pituitary hormone that drives this follicular development.
• Hormone N triggers ovulation by causing the mature follicle to rupture and release the egg.
• Luteinizing hormone (LH) surge from the pituitary induces this ovulation process.

Why C is correct:

• FSH initiates egg production via follicle stimulation, while LH directly causes ovulation per the menstrual cycle's pituitary-ovarian axis.

Why the others are wrong:

• A: Reverses the sequence; LH precedes FSH in ovulation but not egg production.
• B: Oestrogen supports endometrial growth, not egg production; FSH does.
• D: Progesterone and oestrogen are ovarian steroids, not the pituitary signals for egg stimulation or ovulation.

Final answer: C