Explain the human reproduction process from insemination to child birth.

Explanation

Copulation: It is also called coitus or sexual intercourse. During this process the penis moves into the vagina in order to deposit semen which contains sperm cells. The depositing of the semen is called insemination.
Fertilisation: After insemination the sperm will move up the Fallopian tubes. If ovulation has occurred and an egg is present, the egg will release a chemical that attracts the sperm. This is called chemotaxis. The sperm that reaches the egg will use an enzyme in its chromosomes to make an opening in the membrane of the egg. Once one sperm enters the egg ( only the head enters) the egg forms a membrane that prevents other sperm from entering. The nucleus of the sperm fuses with the nucleus of the egg. A diploid zygote forms. Fertilisation may take place during days 11-16 of the menstrual cycle.
Implantation: After fertilization the embryo undergoes implantation, wherein the embryo attaches itself to the lining of the uterus.
Placental growth: After the implantation, a placenta develops which provides nutrition to the foetus and removes the excretory wastes from the foetus .
Child Birth: The gestation period is roughly about nine months, after which the child is delivered.