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Identical Twins

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lagrossesse
Title:
Identical Twins

Word Count:
458

Summary:
Twins are two people who have shared the same womb at the same time. They may also have come from the same egg. Twin births are becoming more and more common due to several factors such as increasing use of fertility treatments, child births at an older age, and even genetic factors. Women who are slightly above-average in build are also likely to have multiple births or twins. Certain ethnic groups are also found to have a greater twin population. One in every 250 births in the world could be an identical twin birth.


Keywords:
Twins, Identical Twins, Twin Babies, Conjoined Twins


Article Body:
Twins are two people who have shared the same womb at the same time. They may also have come from the same egg. Twin births are becoming more and more common due to several factors such as increasing use of fertility treatments, child births at an older age, and even genetic factors. Women who are slightly above-average in build are also likely to have multiple births or twins. Certain ethnic groups are also found to have a greater twin population. One in every 250 births in the world could be an identical twin birth.

Identical twins are also known as monozygotic twins. They are from a single egg that forms a single zygote that splits into two embryos. Two fetuses emerge from the two embryos in the same womb. The exact reason for this splitting hasn’t been identified yet. Sometimes, identical twins also share the same amniotic fluid, making them monoamniotic. Otherwise, they are diamniotic. Twins sharing the same placenta are monochorionic. Those who don’t are dichorionic. This happens only in the case of identical twins. All monoamniotic twins are also monochorionic. This depends on the stage at which the zygote divides. Twinning at the earliest stages would result in diamniotic and dichorionic twins. Twinning that occurs four to eight days after fertilization and eight to twelve days after fertilization results in monochorionic-diamniotic and monochorionic-monoamniotic, respectively. Twinning twelve days post-fertilization may result in conjoined twins. Conjoined twins are attached to each other at some place. They may be more dependent on each other physically.

Since identical twins share the same sac, amniotic fluid, and placenta, there could be some complications in pregnancy. These could be a result of the entanglement of the umbilical cords or twin-to-twin transfusion syndrome because of the shared placenta. This may cause one or both the babies to be underdeveloped.

Identical twins are generally of the same sex. They have identical DNA and shared genes. They may be very similar to each other, almost like mirror images. Some twins can be told apart only by their fingerprints, teeth, handwriting, or any other intricate observations. However, they have individually different personalities and character traits. Twins are generally emotionally attached to each other and are also believed to live longer because of this attachment. Some people even believe that identical twins have their own language through which only the two of them can communicate. Some identical twins are also mirror twins—they are exact mirror images of each other. About one-fourth of all identical twins are mirror twins. Sometimes, one mirror twin may have a condition where some or all the internal body organs will be on the opposite side of the body. However, these are considered to be birth defects and are extremely rare.


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BONUS : Title:
Induced Abortion

Word Count:
629

Summary:
One of the most sensitive and intimate decisions made by an individual or by a couple is that of fertility control. This decision is often based on deeply held religious or philosophical convictions. Thus, the clinician must approach the patient’s fertility needs with particular sensitivity, empathy, maturity, and nonjudgmental behavior.

However, it must be recognized that there is a considerable need for contraception.


Keywords:
Induced Abortion, Abortion


Article Body:
Induced abortion is the deliberate termination of pregnancy in a manner that ensures that the embryo or fetus will not survive. Attitudes of society toward elective abortion have undergone marked changes in the past few decades. In some situations the need for abortion is accepted by most people, but political and medical attitudes regarding induced abortion have continued to lag behind changing philosophies. Some religious concepts remain unchanged, resulting in personal, medical, and political conflicts.

About one-third of the world’s population lives in nations with nonrestrictive laws governing abortion. Another third live in countries with moderately restrictive abortion laws, ie, where unwanted pregnancies may not be terminated as a matter of right or personal decision but only on broadly interpreted medical, psychologic, and sociologic indications. The remainder live in countries where abortion is illegal without qualification or is allowed only when the woman’s life or health would be severely threatened if the pregnancy were allowed to continue.

An estimated 1 out of every 4 pregnancies in the world is terminated by induced abortion, making it perhaps the most common method of reproduction limitation. In the U.S., estimates of the number of criminal abortions performed prior to legalization of the procedure ranged from 0.25-1.25 million per year. The number of legal abortions now being performed in this country approximates 1 abortion per 4 live births. In 1997, there were 1.33 million induced abortions compared to 3.88 million live births.

Legal Aspects of Induced Abortion in the United States
The United States Supreme Court ruled in 1973 (1) that the restrictive abortion laws in the U.S. were invalid, largely because these laws invaded the individual’s right to privacy, and (2) that an abortion could not be denied to a woman in the first 3 months of pregnancy. The Court indicated that after 3 months a state may “regulate the abortion procedure in ways that are reasonably related to maternal health” and that after the fetus reaches the stage of viability (about 24 weeks) the states may refuse the right to terminate the pregnancy except when necessary for the preservation of the life or health of the mother. Still, much opposition is raised by various “right-to-life” groups and religious groups. In spite of this opposition, over 1 million procedures are still performed annually in the United States, with about one-third being performed on teenaged women. This dramatically emphasizes the inadequacy of sex education and the need for greater availability of adequate contraceptive methods in order to avoid such pregnancy wastage.

Evaluation of Patients Requesting Induced Abortion
Patients give varied reasons for requesting abortion. Since in some cases the request is made at the urging of the woman’s parents or in-laws, husband, or peers, every effort should be made to ascertain that the patient herself desires abortion for her own reasons. In addition, one should be certain that she knows she is free to choose among other methods of solving the problem of unplanned pregnancy, eg, adoption or single-parent rearing.

Although the majority of abortions are performed as elective procedures, ie, because of social or economic reasons as opposed to medical reasons, some women still request such services for medical or surgical indications. For example, for women with certain medical conditions, such as Eisenmenger’s complex and cystic fibrosis, continuation of pregnancy may pose a threat to the life of the mother. Other indications are pregnancy resulting from a rape or pregnancy with a fetus affected with a major disorder, eg, trisomy 13. In any event, the ultimate decision rests with the pregnant woman.

Please visit Induced abortion, Contraception and Methods of contraceptionfor more information.


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