conjoined twins

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conjoined twins,

congenitally united organisms that are complete or nearly complete individuals, historically known as Siamese twins. They develop from a single fertilized ovum that has divided imperfectly; complete division would produce identical twins, having the same sex and general characteristics. Conjoined twins remain attached at the abdomen, chest, back, or top of the head, depending on where the division of the ovum has failed. In some instances the individuals are joined only by a band of musculofibrous tissue and can be separated surgically, but in other instances they share vital organs and separation may not be possible. Sometimes an ovum divides in such a way that an organism develops having one body and two heads, or one head and two sets of limbs. About half of all conjoined twins are stillborn, and many die within a week or so of birth. When they do survive, fatal illness in one dooms the other unless separation is possible. The name Siamese twins derives from the most famous of conjoined male twins, Chang and Eng, born in Siam (Thailand) of Chinese parents in 1811. They were exhibited in Barnum's circus for many years; although never separated, they married and fathered a total of 22 children. They died within 2 hours of each other in 1874. See also multiple birthmultiple birth,
bringing forth of more than one offspring at birth. Although many smaller mammals bear several young at a time, multiple births are relatively uncommon in humans and other primates.
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References in periodicals archive ?
Mary and Eliza Chulkhurst, commonly known as the Biddenden Maids who were born in England in the year 1100 and Eng and Chang Bunker, commonly called Siamese Twins, who were born in Thailand in 1811 are some of the famous conjoined twins in the history of medical science.
Laura learned she was having the conjoined twins after a routine scan at 12 weeks.
The surgery on the four-month-old Korean sisters took place at the city-state's Raffles Hospital, where two adult Iranian conjoined twins died recently after a marathon session to separate them.
But here's what really makes it interesting: Name one other nominee who then went out and made a comedy about conjoined twins.
Globally renowned for the separation of conjoined twins, Al-Rabeeah has successfully separated conjoined twins from countries such as Poland, Egypt, Iraq, Syria, and Saudi Arabia.
In the latest case, Subhash Mukhiya and his wife Nirmala Devi are using all means to get their conjoined twins separated.
1 in 80,000 Chances of conjoined twins sharing the same body being born say experts
FAITH Williams, the baby separated from her conjoined twin, is recovering from a second life-saving operation, reports say.
The conjoined twins were later shifted to Islamabad, he added.
Lazareff, who operated on her daughter and recently separated a pair of conjoined Guatemalan twins, asked if she would help children in other countries, Milliken-Gill agreed.
A HOSPITAL in New Delhi is attempting to convince the parents of two conjoined 35-day-old boys to take them home instead of abandoning them.
A web of blood vessels sprawled between their conjoined skulls, bridging their circulatory systems (heart, blood, arteries, and veins) so that blood pumped from Maria Teresa's heart flowed equally into Maria de Jesus, and vice versa.