Ovulation occurs under the influence of

• (a) LH (Luteinizing hormone)
• (b) FSH (Follicle- stimulating hormone)
• (c) Estrogen
• (d) Progesterone

Ovulation is primarily triggered by the surge of Luteinizing Hormone (LH). This hormone plays a crucial role in the menstrual cycle, signaling the ovaries to release an egg. While Follicle-Stimulating Hormone (FSH), Estrogen, and Progesterone are important in the overall process of reproduction, it is LH that directly causes ovulation.

Key Hormones Involved in Ovulation

• Luteinizing Hormone (LH): Responsible for triggering ovulation.
• Follicle-Stimulating Hormone (FSH): Helps in the growth of ovarian follicles.
• Estrogen: Prepares the uterine lining and regulates the menstrual cycle.
• Progesterone: Maintains the uterine lining after ovulation.

In summary, while multiple hormones are involved in the reproductive cycle, LH is the key player in the actual process of ovulation.