Question

A sudden rise in the level of LH stimulates ______________.

• A. secretion of estrogen
• B. ovulation
• C. secretion of uterine milk
• D. degeneration of uterine endometrium

Hint:

LH surge is the key hormonal signal responsible for ovulation in human females.

Answer 1

The Correct Option is B

Step 1: Understanding the role of LH.
Luteinizing hormone (LH) is a gonadotropin hormone secreted by the anterior pituitary gland. It plays a crucial role in regulating the menstrual cycle.
Step 2: LH surge during menstrual cycle.
Midway through the menstrual cycle, a sudden and sharp increase in LH level occurs, known as the LH surge.
Step 3: Effect of LH surge.
This LH surge triggers the rupture of the mature Graafian follicle in the ovary, releasing the ovum.
Step 4: Conclusion.
Therefore, a sudden rise in LH level directly stimulates ovulation.