Question

Which one of the following is the most likely root cause, why menstruation is not taking place in a human female, having regular menstrual cycle?

• A. Fertilization of the ovum
• B. Maintenance of the hypertrophic endometrial lining
• C. Maintenance of high concentration of sex-hormones in the blood stream
• D. Retention of well-developed corpus luteum

Answer 1

The correct option is A Fertilization of the ovum

Menstruation or menstrual cycle is the natural change, that occurs in the uterus and ovary of the fertile female, which is an essential part of making sexual reproduction possible. It is necessary for the production of eggs. In human female, the menstrual cycle occurs repeatedly thereby producing an ovum (or egg) each time and the egg remains there for 24 hours without fertilization. Once, the egg has been fertilized, there will be no menstrual cycle.