An analysis of the process of fertilization in female body

Garland Science ; Search term Fertilization Once released, egg and sperm alike are destined to die within minutes or hours unless they find each other and fuse in the process of fertilization. Through fertilizationthe egg and sperm are saved:

An analysis of the process of fertilization in female body

Want to Get Pregnant? Your doctor will count the start of your pregnancy from the first day of your last menstrual period. Each month inside your ovaries, a group of eggs starts to grow in small, fluid-filled sacs called follicles. Eventually, one of the eggs erupts from the follicle ovulation.

It usually happens about 2 weeks before your next period. Hormones Rise After the egg leaves the follicle, the follicle develops into something called the corpus luteum.

The corpus luteum releases a hormone that helps thicken the lining of your uterus, getting it ready for the egg. It stays there for about 24 hours, waiting for a single sperm to fertilize it.

All this happens, on average, about 2 weeks after your last period. Your hormone levels go back to normal. Your body sheds the thick lining of the uterus, and your period starts.

Fertilization If one sperm does make its way into the fallopian tube and burrows into the egg, it fertilizes the egg. The egg changes so that no other sperm can get in.

If the sperm has a Y chromosome, your baby will be a boy. If it has an X chromosome, the baby will be a girl. Moving to the Uterus The fertilized egg stays in the fallopian tube for about 3 to 4 days.

But within 24 hours of being fertilized, it starts dividing fast into many cells. It keeps dividing as it moves slowly through the fallopian tube to the uterus. Its next job is to attach to the lining of uterus.

This is called implantation. Some women notice spotting or slight bleeding for 1 or 2 days around the time of implantation. The lining of the uterus gets thicker and the cervix is sealed by a plug of mucus. It will stay in place until the baby is ready to be born. Pregnancy Hormones A pregnancy hormone known as hCG is in your blood from the time of implantation.

This is the hormone detected in a pregnancy test. Usually it takes 3 to 4 weeks from the first day of your last period for the levels of hCG to be high enough to be found by the tests.

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An analysis of the process of fertilization in female body

Approximately four days after fertilization, the zygote has about cells and is called a blastocyst. When the blastocyst reaches the uterine lining, it floats for about two days and finally implants itself in the uterine wall around six days after fertilization.

Human fertilization is a very complicated process with many steps that take place in a short amount of time. Luckily, the definition is not as complicated as the process.

Human fertilization is basically the fusion of the egg and sperm resulting in a zygote. In Vitro Fertilization IVF, which stands for in vitro fertilization, is an assisted reproductive technology.

In vitro, which in Latin translates to “in glass,” refers to a procedure that takes place outside of the body. There are many different indications for IVF. The process of union of a haploid male gamete or sperm with a haploid female gamete or ovum to form a diploid cell, the zygote, is called fertilization.

Site of Fertilization: In man fertilization is internal (external in case of frog) as in other mammals. The process of fertilization involves successful fusion of the male and female gamete cells. second meiotic division of the ovum is completed and one set of maternal chromosomes is expelled in the second polar body.

An analysis of the process of fertilization in female body

4) After entering the ovum the tail of the sperm degenerates and the head enlarges (de-condenses) to form the male .

Fertilization - Molecular Biology of the Cell - NCBI Bookshelf