Question

Mention the events taking place when the ovum is fertilized in the Fallopian tube till it is implanted the uterus of the female

Answer 1

Dear student,

Fertilization:is the biological process released during a sexual intercourse.

1)In this process, semen containing thousands of sperm is inseminated into the vagina.

2)After the penetration and with the help of reproductive parts sperms start to clear their route in the fallopian tube to meet the ovum.

3)More distance it covers, sperm count reduces and very few sperms reach the egg. An egg is covered by a protective layer called zona pellucida.

4)Sperms modify themselves and start to release chemicals in order to attract the egg and penetrate into it. Upon encountering the egg, the sperm releases its content inside the egg and fuses with the egg nucleus.

5)Fertilization is accomplished in this step. Out of thousands, mostly only one sperm accomplishes its target.

Implantation

1)Once fertilization happens, the cell starts to divide and multiply within 24 hours at the fallopian tube.

2)This detached multi-celled structure is called zygote.

3)Later, approx. after 3-4 days(may varry) it travels to the uterus and now we call it as an embryo.

4) The embryo develops and undergoes various stages and gets attached to the endometrial layer of the uterus.

5) This process of attachment is known as implantation. Officially a woman becomes pregnant.

Find the image of the same below

Regards