Conjoined Twins

Twins are a affectionate of assorted births, i.e., back a woman gives bearing to added than one babyish at the aforementioned time. Twins action back added than one egg is fertilized or back the aforementioned egg is fertilized added than already by one or two sperm, arch to accumulation of added than one fetus.

Conjoined twins are identical twins who are abutting calm about in the body. Accessory twins are monozygotic twins, in the faculty that they allotment the aforementioned zygote. Sometimes, they additionally allotment some basic centralized organs. Accumulation of accessory twins is believed to be the aftereffect of backward twinning. Back the twinning occurs added than twelve canicule afterwards fertilization of the egg, it may advance to accumulation of accessory twins because the antecedent may not breach completely. This may be due to abiogenetic or ecology factors.

Conjoined twins are additionally accepted as Siamese twins, called afterwards the acclaimed accessory twins, Eng and Chang Bunker from Siam. Accessory accompanying births are actual rare, amounting to about one bearing in every 1,00,000 births. Mary and Eliza Chulkhurst, abundantly referred to as the biddenden maids, are one of the ancient accepted set of accessory twins. The arrangement of macho and changeable sets of accessory twins was begin to be three to one, and they are begin added in assertive countries like India or Africa.

Conjoined twins rarely survive because of the complication of the bodies. Most of them are stillborn or die aural twenty-four hours afterwards birth. Accessory twins can be afar surgically if none of the basic organs are involved. There are altered kinds of accessory twins, depending on the allotment of the anatomy area they are joined. These are cephalopagus, craniopagus, craniothoracopagus, dicephalus, iscopagus, omphalopagus, parapagus, pygopagus and thoracopagus. There are additionally some attenuate kinds of accessory twins, such as abject twins (where one accompanying is not absolutely formed and depends on the added accompanying to sustain life), and fetus in fetu (where one twin’s fetus is present central the anatomy of the added twin).

Some bodies accede break of accessory twins as bent if it involves afterlife or affliction of one of the twins. Accessory twins, if they survive, can advance advantageous lives. There are instances area accessory twins accept alike affiliated and become parents. The acclaimed Siamese twins, Chang and Eng Bunker, fathered twenty-one accouchement in thirty-one years.