Which of the following hormone levels will cause release of ovum (ovul...
LH (Leutenizing hormone) is produced by pituitary gland in the brain. It triggers ovulation & promotes the development of corpus luteum by rupture of graafian follicle. Which high concentration of estrogen is relesed by moture graafian follicle

Which of the following hormone levels will cause release of ovum (ovul...
Hormone levels responsible for ovulation
Ovulation is the process in which a mature egg is released from the ovary. This process is regulated by hormones. The correct answer is option C, high concentration of estrogen. Let's understand how estrogen is responsible for ovulation.
Role of estrogen in ovulation
1. Follicular phase: During the follicular phase of the menstrual cycle, the pituitary gland releases follicle-stimulating hormone (FSH) which stimulates the growth of follicles in the ovary.
2. Dominant follicle formation: Among the growing follicles, one follicle becomes dominant and continues to grow. This dominant follicle secretes increasing amounts of estrogen.
3. Estrogen surge: As the estrogen levels rise, they reach a threshold level that triggers a surge of luteinizing hormone (LH) from the pituitary gland.
4. Ovulation: This LH surge triggers ovulation, which is the release of the mature egg from the ovary. The egg then travels through the fallopian tube towards the uterus.
5. Corpus luteum formation: After ovulation, the remaining cells of the follicle form the corpus luteum, which secretes progesterone.
6. Luteal phase: The luteal phase of the menstrual cycle is characterized by high levels of progesterone, which prepares the uterus for possible pregnancy.
Conclusion
In conclusion, high levels of estrogen play a crucial role in ovulation. The estrogen surge triggers the release of LH, which in turn triggers ovulation. Therefore, option C, high concentration of estrogen, is the correct answer.