Question

If the ovaries of a pregnant woman are removed in the 4th month of pregnancy, then
A. Development of the embryo become abnormal
B. Abortion occurs after some time.
C. The embryo develops normally till after the birth
D. None of the above

Answer 1

Hint: Ovaries secrets different reproductive hormones and oestrogen and progesterone which are very important in the pregnancy.

Complete answer: 1. The ovaries secrets the egg cell ova or the oocytes which is further transferred to the fallopian tube in which it meets with the sperm cells and gets fertilized and form zygote which is embedded in the uterine walls of the Uterus.
2. On the other hand ovaries also secrete different hormones which are helpful in the proliferation of the uterine wall and regulating the menstrual cycle.
3. The estrogen hormone which is secreted by the ovary helps in the development of the female characters like the development of breast, large hips in the young girls.
4. Progesterone is responsible for the thickening of the uterine membrane when a new menstrual cycle is initiated.
5. Relaxin hormone helps when labor pain initiates on the female and stretches the pelvic region for the safe delivery of the child.
6. When the first trimester ends the trophoblast layer is formed which helps in the formation of the placenta which secrete different hormones that help in the development of the embryo. Here placenta secretes human gonadotropin hormones oestrogen, progesterone to regulate all the development of the embryo.
7. So if the ovaries of a pregnant woman are removed in the 4th month of pregnancy then the embryo develops normally till after the birth.

So option C is correct.

Note: Relaxin hormone is very important at the time of delivery which is secreted by the ovary so at the time of delivery some complications can occur if ovaries are removed in the 4th month.