Describe the process of fertilization in human beings with the help of a diagram
Answers
A biological process in which the fusion of the male and the female gamete occurs is called fertilization. The sperms are released from the male reproductive organ called the penis. The sperm enters the female body through one of the parts of her reproductive organ called the vagina. Then the sperm travels through the fallopian tubes and meets the egg produced by the female organs. The process of fertilization takes place in fallopian tubes.
Fertilization is the natural life process, which is carried out by the fusion of both male and female gametes, which results in the formation of a zygote. In humans, the process of fertilization takes place in the fallopian tube.
During this process, semen comprising thousands of sperms are inseminated into the female vagina during coitus. The sperms move towards the uterus and reach the opening of the fallopian tube. only a few sperms will succeed in reaching the opening of the fallopian tube.
The secondary oocyte releases from the matured Grafian follicle of the ovary and enters into the fallopian tube, where it is fertilized within 24 hours, after which it is released from the ovary.
Though surrounded by several sperms, the oocyte is fertilized by a single sperm. During meiosis-II, the sperm enters the secondary oocyte and completes the meiosis. After this, the secondary oocyte is known as the egg.
Both sperm and egg can show their vitality only to a limited period. Sperm is alive for 48-72 hours in a female reproductive system, whereas the egg can be fertilized for 24 hours before it is released.
formation of zygote by union of sperm and ovum os called as fertilization . Fertilization is internal in human .semen is ejaculated in vagina during copulqtion . sperms ,in the number of few millions start their journey by the route of vagina-uterus-oviduct. One of those few million sperms fertilize the only ovum present in the oviduct .
From the age of puberty up the menopause (from 10- 17 years of age up to 45-50 years), an ovum is released every month from the ovary .i.e. out of 2- 4 million ova, approximately only 400 oocyte are released up to the age of menopause.Remaining oocyte undergo degeneration..
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