Question

Given below are diagrams showing the different stages in the process of fertilisation of an egg in the human female reproductive tract. Study the diagrams and answer the questions.

Where does fertilisation normally take place? What is 'implantation' that follows fertilisation?

Answer 1

• Fertilisation occurs in the fallopian tube of the female reproductive system.
• The blastocyst forms a pit in the endometrial lining of the uterus and gets fixed in it in about a week's time after ovulation.
• This process by which the embryo attaches itself to the uterine wall is known as implantation.