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Question
Explain any three methods that can be used to overcome infertility.
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Solution
The infertile couples could be assisted to have child/children through certain special techniques commonly known as Assisted Reproductive Technologies (ART).
- IVF (In-vitro Fertilization): It is a process of fertilization where an egg is combined with sperm outside the body in a test tube or glass plate to form a zygote under simulated conditions in the laboratory. The zygote or early embryos (with up to 8 blastomeres) could be then transferred into the fallopian tube for further development.
- ZIFT (Zygote Intrafallopian Transfer):
ZIFT is an infertility treatment used when there is a blockage in the fallopian tubes which prevents the fertilization of the egg by the sperm. In this method, the egg is removed from the woman’s ovary. Fertilization of the egg with sperms is brought about outside the body under sterile conditions to form a zygote by the process called in vitro fertilization (IVF). The zygote is then transferred to the fallopian tube for further development. - GIFT (Gamete Intrafallopian Transfer):
This method involves the transfer of an ovum collected from a donor into the fallopian tube of another female who can provide a suitable environment for its fertilization and development. GIFT was developed for the cases in which only the entrance to the oviducts or the upper segment of the oviducts in blocked. In this procedure, ova and sperms are directly injected into regions of the oviduct, where fertilization produces a blastocyst, which enters the uterus via the normal route. GIFT has a success rate of about 30 percent. - ICSI (Intra Cytoplasmic Sperm Injection):
ICSI is an in vitro fertilization procedure in which a single sperm cell is injected directly into the cytoplasm of an ovum in the laboratory. - Artificial Insemination (AI):
In some infertility cases, the male partner is unable to inseminate the female due to a very low sperm count. This problem can be solved by artificial insemination. In this technique, the sperms are collected from the male and artificially introduced into the cervix of the female, for the purpose of achieving a pregnancy through in vivo fertilization (inside the body). - IUI (Intra Uterine Insemination): IUI resembles the procedure of artificial insemination, the only difference is that the sperms are introduced into the uterine cavity instead of the cervix.
RELATED QUESTIONS
Fill in the blank:
Gonorrhoea is caused by _______ bacteria.
Short answer question.
Write a note on IVF.
Expand the following.
ZIFT
The method of directly injecting a sperm into ovum in assisted by reproductive technology is called ______.
Artificial insemination means ______.
Which method can be used for women that cannot produce ovum but can provide suitable environment?
In vitro fertilisation is a technique that involves transfer of which one of the following into the fallopian tube?
Males in whom testes fail to descend to the scrotum are generally infertile. Why?
Placed below are case studies of some couples who were not able to have kids. These couples are not ready for adoption or taking gametes from donors. After thoroughly examining the cases, which Assisted Reproductive Technology will you suggest to these couples as a medical expert? Explain briefly with justification of each case.
| Couple | Test reports of Female partner |
Test reports of male partner |
| Couple 1 | Normal reports | Normal sperms in testes, Missing connection in epididymis and Vas deferens. |
| Couple 2 | Blockage in the fallopian tube | Normal reports |
| Couple 3 | Normal reports | Poor semen parameters in terms of count, motility and morphology. |
| Couple 4 | low ovarian reserve | Normal reports |
| Couple 5 | Sterilization in male | Morphologically abnormal sperms |
Explain any two ways by which IUDs devices act as contraceptives.
