For fertilization to work correctly the doctors need to be ready to start the process at a specific time. There is process that helps the doctors to be able to do this correctly, this is the process of capacitation. Capacitation is when sperm is prepared to fertilize the egg, this takes place in two stages. The first stage is taken place when the sperm passes through the woman's reproductive tract. Then it's acrosome (cap-like structure over the anterior half of the sperm's head) fuses with its plasma membrane, which then slowly releases the enzymes within the acrosome. The second stage takes place after the acrosome is exposed, and the sperm attracts to the primary ovarian follicle and the shell-like covering of the egg. These stages are the two most important stages of fertilization. As Dr. Sher explains in his book about IVF: “During fertilization, an egg presents a large target for the sperm. This means that the egg is about 550 times as big as the …show more content…
There are four steps to the IVF process, he first step if preparing for IVF treatment. The four steps to completing the IVF process are, ovulation induction, egg retrieval, fertilization, and the last step is the embryo transfer. The first step, ovulation induction, is when your fertility specialist monitors your ovaries to see when your eggs will get released. The second step, egg retrieval, is when a thin needle is placed in through your upper vaginal wall. Next, fluid is taken out from the follicles with gentle suction. Immediately after that the egg is isolated from the follicular fluid, then placed into a culture dish containing nutrients for the egg. The egg is then placed into an incubator. The third step , fertilization, during this step a sperm sample is retrieved, either from your partner or a donor. The most active sperm cell is mixed with the egg in a special chamber, or the sperm is directly inserted into the egg. Lastly, the sperm and egg are placed into an incubator to be monitored to make sure they create a healthy embryo. The fourth, and final step is the embryo transfer. First, the embryos are examined to choose the most healthy ones. Next, the embryos are transferred into the cervix by a small plastic tube. These four steps successfully allow you to complete the process of