Ngaba uyazi ukuba zingaphi iiseli zesisu ezihlala?

Umzimba womntu ungummangaliso. Inkqubo yokukhulelwa kunye nokuphuhliswa kombungu ngaphakathi kwowesifazane, nangona "ukuqonda" kwehlabathi, uhlala ungummangaliso ongekho. Ukuzalwa komntwana kubonakala kunokwakho kuphela kumangalisa "ama-coincidences" kunye ne-metamorphosis engaqhelekanga eyenziwa kwiindawo ezifihliweyo zomzimba wesetyhini. Zingaphi iintsholongwane zentlobo zihlala kwaye njani ukuchumisa kwenzeka? Imibuzo ebandakanyekayo, iimpendulo ozakufumana kuyo kwinqaku elifakwe kwingqalelo yakho.

Akunjalo lula kakhulu ...

"Iimfihlelo" zesifazana zivela kuma-chromosomes afihliweyo, enesakhiwo esifana ne-X. Umzimba womama ozayo uza kuzalisa iqanda emva kweentsuku ezingama-28, oku kubangelwa ixesha lokunyuka kwesisu. Isitokethi seeseli zentsholongwane kubasetyhini, ngoko kuthetha, "isini esicuthakathaka" silinganiselwe ngenombolo eguqukayo: ukusuka kuma-250 ukuya kuma-450 amawaka. Ukulindela ubomi kwe- ovule kuxhomekeke kwizinto ezininzi. Ubume obaluleke kakhulu kwi-cell network ye-gameteous coition yeeseli ezimbini zixhomekeke kumzimba wowesifazane ngexesha lokukhulelwa kwaye ngenxa yoko unako ukuvelisa iziqhamo kunye nomnqweno womtshato wesibini. Impendulo yombuzo othi "Zingaphi iindidi zesininzi zihlala?" Ingabonakalisa amandla "kwesiqingatha sesibini" ukuba idlale indima ebalulekileyo, ukuze inkqubo yokuchumisa ibonakale. Ngombulelo kule nkalo ebalulekileyo, ubomi beqanda buya kulungiswa. Masithathe uhambo olufutshane kunye nawe uze uzame ukuphendula umbuzo wokuhlala ixesha elide kangakanani, kwaye ulandele ixesha elibalulekileyo, umphumo wokuba luya kuba ngumphefumlo.

Akukho mda wokumangalisa

Ngoko, emva kokuba iseli lesifazane sele likhule kwaye likulungele ukushiya i-ovary ukwenzela ukuba uhambe ngendlela ethile, kwisibeleko, isidoda sesilisa sigijima ukudibana. Ngendlela, inani "labanqobileyo" lingama-unit units angama-200-250. Ngokuqinisekileyo, inani elinjalo linqunyelwe ngaphambili ngenani leengxaki endleleni yokufezekisa injongo:

• Okokuqala, indawo engummangaliso yowesifazane kunye ne-85% ye-spermatozoa engaphantsi kweyonke inani lamaseli ezakhiweyo eziveliswa ngumntu iba yinto ebalulekileyo ekuthintela intlanganiso "yokwamkelwa" yezimbini ezibalulekileyo zobomi.
• Okwesibini, ukuba sinokuqwalasela ukuba zininzi iintsholongwane zentlobo ezihlala kwindawo yangaphandle (ukungabikho kwamandla eeseli zesini esinikwa ngumlingani kubonisa ubungqina), kuphela i-1% yeyona nto ibuhlungu kakhulu kwi-cervix evela kwimbewu yomyeni.
• Okwesithathu, "ukunyuka" kunye nekhampasi yekhamera, ephethe i-mucus exutywe ngama-hormone, kwaye ekhokelela kumgca omncinci wesibeleko, akunjalo lula.
• Okwesine, isistim somzimba somfazi esinesidoda asikho ngaphezu kwabahlaseli, siqala ngokukhawuleza ukutshabalalisa iiseli zesini zesini. Iiseli zegazi ezimhlophe zihamba ngokukhawuleza "abazingeli".

Ingqinisiso yesayensi

Zingaphi iindidi zesinambuzane eziphilayo, ezithe zafika kwi-tube fallopian? Kukho bambalwa kakhulu "baits". Kuphela i-20 okanye enye ngaphaya kweleyo inikwa "ukufudumala okufudumele". Kwaye kuphela omnye wabo oya kuzalisekisa "umyalezo" ekupheleni. Ngokuqhelekileyo, isilwanyana esisetyenziselwe ukunqoba isayithi esinzima sithatha iiyure ezimbini. Kufuneka kuqatshelwe ukuba ujikelezo lobomi beseli zesini zesini eziseleyo kwindawo yokuhlala ngesini lilinganiselwe kwiiyure ezili-12, emva koko ziya kufa. "Lucky" banako ukuhlala ngokukhawuleza iintsuku eziliqela. Inzululwazi yezokwelapha iyazi zininzi iintsholongwane zesisu ezihlala kwisibeleko - ngokuqhelekileyo zisusela kwiintsuku ezi-3 ukuya kwezi-5. Okungenakusoleka ukuthetha, eli xesha lanele ukomisa iqanda kwaye unike ubomi kummeli omtsha woluntu.

Ekugqibeleni

Njengoko unokubona ukudibanisa kwaye ube ngumntu, iiseli ezimbini ze-heterozygous kufuneka zinqobe izithintelo eziyinkimbinkimbi zezinto eziphilayo, apho leyo nzala iya kubadla ilifa kubazali babo elona lifanelekileyo kwaye lilungelelaniswa ubomi.