Iindaba zokukhulelwa amawele Inokuvelisa ukothuka kokuqala kulandele idosi ephindwe kabini yolonwabo kunye neemvakalelo ezininzi, kodwa kuhlala kunjalo yenza amathandabuzo amaninzi. I-ultrasound iya kugqiba ukuba kukho umntwana omnye okanye ezininzi. Xa kufikwa kwiintsana ezimbini, kuhlala kukho ukubhideka, kuba inokuba ngamawele afanayo okanye angabazalwana.
Umahluko phakathi kweentlobo zombini zokukhulelwa okuphindaphindiweyo ulele inani lamaqanda aqhanyiweyo okanye xa kwaloo zygote ibunjwa ngexesha lokukhulelwa iye yahlukana yaba ziimbumba ezimbini. Sihlalutya ukuba zinjani ezi ntlobo zokukhulelwa kwamawele.
Amawele e-univiteline
Kwimithi yamawele ye-univitelline, iifom ze-zygote emva Umanyano lweqanda elinye kunye nedlozi kwaye oku Ukwahlulahlula emva kokuchumisa kudala iimbumba ezimbini ezifanayo. Amawele afanayo babelane ngemfuzo yabo ngoko baphantse bafana ngokwenyama. Yinyani eyenzeka kwiimeko ezimbalwa kakhulu, phakathi kwama-25%.
Kukho iintlobo ezahlukeneyo zamawele kuxhomekeke ekubeni i-zygote yahlulahlula nini:
- I-Bichorial kunye ne-diamniotic: kwenzeka kwiintsuku ezi-3 emva kokuchumisa. Iimbumba zondliwa yiplacenta enye kwaye nganye inengxowa yayo yeamniotic.
- I-Monochorionic kunye ne-monoamniotic: Kwenzeka phakathi komhla wesixhenxe kunye noweshumi elinesithathu nalapho iimbumba zibelana ngeplacenta enye kunye nengxowa enye ye-amniotic. Kuxa kuye kwakho ukwahlukana kweeseli ezifanayo kanye.
Iinyani ezinomdla malunga namawele afanayo
Kulo hlobo lolwahlulo, imeko ye "iwele elinyamalalayo" apho enye yeembumba ingagqibi ukukhula kwaye ekugqibeleni ifunxwe ngumama, iwele lakhe, okanye kwanayiplacenta. Kuye kwaphawulwa ukuba kwi-trimester yesibini kuvela iifetus ezimbini kwaye kwi-ultrasound elandelayo enye yazo iye yanyamalala.
Enye inyani enomdla kwaye enqabileyo kakhulu yinto ebizwa "situs inversus" apho abantwana bazalwa bengamawele kwaye amalungu enziwe ngendlela eyahlukileyo. Banokwenza izinto ezichaseneyo ebomini babo (i-psychology eguqukayo), ngelixa omnye esekhohlo, omnye esekunene, okanye banokulala bebuyela umva.
Amawele eBiviteline
Ukukhulelwa okutsha kwenzeka xa Ii-ovules ezimbini zichunyiswa ngamadlozi amabini ahlukeneyo, enza ii-zygotes ezimbini kwiisaka ezimbini ezahlukeneyo. Ngokuqhelekileyo kwenzeka kwi-70% yokukhulelwa kwamawele. Iqanda ngalinye lizifakela kwisibeleko ngokuzimeleyo. ngaphakathi kwesingxobo sakho sokukhulelwa kunye ne-amniotic sac yakho kunye ne-placenta. Olu hlobo lwamawele lolona luqhelekileyo. Amawele eBiviteline abizwa njalo Amawele.
Amathuba okukhulelwa kwamawele ayanda xa ii-zygote ezimbini zifakwe kwisibeleko sikamama ngaxeshanye. Kukho inyani enomdla kumawele angabazalwana, ekubeni banokuba ngabesini esahlukileyo. Kubantwana abali-100 abakhulelweyo abanolu phawu, badla ngokuba ngabesini esahlukileyo okanye banokungqamana nokuba ngamadoda amabini okanye amabhinqa amabini.
Ngaba amawele ebiviteline afanayo okanye ahlukile?
Amawele anayo ulwazi olwahlukileyo lwemfuzo ngoko azifani ngokwasemzimbeni. Banokuba ngabesini esahlukileyo njengoko siye saphonononga. Ukufana kwabo ngokomzimba kuthelekiswa nabazalwana abaqhelekileyo ababini, nangona kukho iimeko apho banokuzalwa ngokufanayo, kodwa abayi kuba ngamawele esipili. La mawele abizwa ngokuba ngamawele okanye amawele e-dizygotic.
Ungazi njani ukuba zii-univitelinos okanye i-bivitelinos iwele?
Ngamanye amaxesha kunzima ukwahlula ukuba ngaba amawele yi-bivitelline okanye yi-univitelline. Ukuba iintsana zesini esahlukileyo ngamawele e-biviteline okoko iwele univitelino bahlala besini esinye.
Ukuba abantwana bangabesini esifanayo, baya kuba ngamawele univitelinos ukuba babelana ngengxowa yangaphandle okanye zombini iingxowa. Le datha inokwenziwa ngokusesikweni kunye ne-ultrasounds yesiqhelo kunye nokuhlalutya zonke ezi datha.
Kwimeko yokuthandabuza ugqirha uyasebenza Uvavanyo lwegazi ukufumana iqela legazi. Ukuba iqela legazi lahlukile baya kuba ngamawele. Ukuba iziphumo zohlalutyo azigqibanga, ukhetho lokugqibela kukuphumeza vavanyo yeDNA.
Umahluko phakathi kwamawele afanayo kunye namawele
Ukuze unikeze i-curiosities ngakumbi phakathi kwezi ntlobo zimbini zokukhulelwa kwamawele, siya kugqiba ngokwahlukana okucacileyo okuya kubaluleka kakhulu kwaye kugqibe.
Isini sabantwana
Ngaphambi kokuzalwa, isini sabantwana abangekazalwa sinokubonwa. Ukuba izini zahlukile, akukho mathandabuzo ukuba ngamawele. okanye amawele. Kodwa ukuba bangabesini esinye kuya kubakho amathandabuzo okuba banokufana na, ekubeni amawele nawo anokuba ngowesini esinye. Kuya kufuneka sihlalutye nge-ultrasound ukuba ngaba bayabelana nge-amniotic sac okanye hayi.
Ingxowa ye-amniotic kunye ne-placenta
Ekukhulelweni kwamawele, ekubeni i-embryo nganye idalwe kunye neqanda layo kunye nesidoda, ngokusengqiqweni ziya kufakwa ngokuzimeleyo kwisibeleko. Ngale ndlela ngamnye uya kwenza i-amniotic sac kunye ne-placenta yakhe.
Kwimeko yamawele afanayo kukho iimeko ezinokuhluka kakhulu:
- Kwenzeka ukuba iimbumba bahlala bebelana ngengxowa enye ye-amniotic kunye ne-placenta, oku kuvamise ukwenzeka phakathi kweentsuku ezisi-7 ukuya kwe-13 emva kokuqhama. Kodwa kwanokuba kuyenzeka, ikamva lisenokuba nemiphumo ekuzalweni kwawo, ekubeni kusenokubakho imeko yamawele akwaSiamese (xa ezalwa emanyene ngokwasemzimbeni) okanye isifo sotofelo-gazi sisenokubakho.
- Ngexesha lokwahlulwa kwe-zygote, ii-embryo zenziwe kwaye ngamnye unako baphuhlise eyabo ingxowa ye-amniotic kunye ne-placenta yabo.
- Phakathi kosuku lwesine okanye lwesixhenxe abantwana banokuba ne-amniotic sac yabo, kodwa babelana nge-placenta enye. Le yimeko edla ngokwenzeka kwi-90% yamatyala.
Enye idatha enokuthi ibenze bavelele xa bezalwa kwaye inkangeleko yabo yomzimba iphononongwa. Ukuba ziyafana ngokucacileyo, kuxa kunjalo bazalwa benomthwalo ofanayo wemfuza kwaye ke ngoko banjalo amawele afanayo. Ngakolunye uhlangothi, banokuba ngamawele, kodwa kule meko babelana nge-50% ye-DNA kwaye bahluke ngokucacileyo, nangona kukho iimeko apho banokufana kakhulu. Abakwabelani ngeqela legazi elifanayo.