Amanyathelo okuphuhliswa kwabantwana esibelethweni

Isiqalo esibalulekileyo esichaphazela ubomi besikhathi esizayo somntu ukusuka ekukhulelwe kuze kube sekufeni kukuzalwa kwakhe. Ukuqhagamshelaniswa kwezizukulwana kuboniswa ngokuchanekileyo ngeli xesha. Ixesha le-intrauterine kunye neentsuku zokuqala zomntu zichaphazela bonke ubomi, nangona singenakukwazi ukwenza nayiphi na impembelelo. Ezona ziinyanga ezili-18 zobomi - ukususela ngexesha lokuvela kwiinyanga ezili-9 zobukho obuzimeleyo.

Amanyathelo okuphuhliswa kwabantwana esibelethweni ukususela ekukhulelwe kuze kube sekuzalweni

Zomibini izilwanyana kunye nomntu zinendlela efanayo yokuvelisa. Abasetyhini, njengabesifazane, bakhiqiza iqanda, amadoda, njengamadoda endalo, i-spermatozoa. Ubusana buba khona xa i-ovum ixutywa ngesilwanyana sesinambuzane. Ukongezelela, ukuba zonke iindidi zenziwa kwakhona ngokuqhubeka kwe-genus, uhlobo lwenze inkqubo yokuchumisa inkqubo enhle.

Izitho zokuzala kubasetyhini zikwinqanaba le-pelvis, kwicandelo elingaphantsi kwesisu. Isibeleko senkosikazi, igama eliqhelekileyo nelinye eliqhelekileyo-isibeleko, isilonda sesisu, malunga neshumi elinamashumi ama-millimeters ngobukhulu, isisindo sama-grams angamashumi amahlanu, ephakathi kwimizimba yesini. I-uterus ifana nefom yefowuni kwaye ixhuma kunye nokuqala kwesondo kunye nenxalenye yayo emxinayo. Inxalenye engezantsi yesibindi iphela ngokuvulwa kwangaphakathi komsele womlomo wesibeleko.

Ingxenye ephezulu yesibeleko iqhutyelwa ngamatye amabini alawulwa kwimizila eyahlukeneyo ngobude malunga no-7-10 centimitha. I-tube nganye kwindawo ekude ukusuka kwisibeletho iphelela ngesigxina ngesimo sensimbi, kwisiseko apho i-ovari ikhona. Kwisiseko ngasinye se-ovaries ezimbini zezicubu zenyama.

Inyanga zonke i-egg ripens kwisigxina kunye neentsuku eziyi-10 emva kokuhamba kwesisu kuya kwintsholongwane kwi-tube ukusuka kwi-ovary. Ngelo xesha, i-lining ekulungeleyo ibunjwa kwisibeletho ukuze iqanda litsalwa. Ukuba inkqubo yokukhulelwa kweqanda ayifumaneki, idlula kwisibeleko kwaye iphuma ngaphandle. Emva kweveki ezi-2, i-paji ekhethekileyo elungiselelwe iphonswa ngaphandle, kwaye iqela elitsha lenziwa ngokuchumisa iqanda elilandelayo. Le nkqubo yokushiya impahla engasetyenziswanga esasiyifumana ukubizwa ngokuba yimihla.

Kwimizimba yokuzala izithandane, eziphambi kokuzalwa kwenkwenkwe kwinqanaba le-vertebrae yakhe, kodwa ngexesha lokuzalwa lithatha indawo yalo kwisiqhwa. Kwimathambo, i-sperm yenziwa. Iingcali zenzululwazi zibale ukuba indoda enempilo ingaphonsa ngaphezu kwezigidi ezigidi ezingama-200 ze-spermatozoa nge-ejaculation, kwaye iiferi ezivelisa izilwanyana zenye itekisi zingenza malunga ne-1 mile okanye i-1609 metres ubude.

Ngexesha lokwebelana ngesondo, indoda yesilisa iqhuma kwisisu somfazi ngokusebenzisa i-urethra. Ukuqhubela phambili kwe-spermatozoon evuthiweyo ekuvuleni komlomo wesibeleko unikeza umsila wakhe omde, owenza, ukuguqula, uhambisa umzimba wesidoda kwaye uvelise ijubane ukuya kwi-3 mm ngomzuzu. I-spermatozoa esheshayo ithunyelwa kwi-cervix kwindawo yesibindi, ukuqhuma kwimibhobho ngenjongo ephambili-ukutshiza iqanda. Ngokukhawuleza xa i-spermatozoon esheshayo ifinyelela kwiqanda, ixhoma, ngelixa iguqule umlo wayo ngokukhawuleza ize ifikeleleke kwi-spermatozoa eseleyo

Iqanda elichumayo lihamba kwisibilini se-uterine ngokusebenzisa ityhubhu, sijonge eludongeni kwaye siqala ukuphuhliswa kwayo. Iinguqu ezikhethekileyo zenguqu, ukuguqula kwi-placenta, ukwakha "isidleke" somntwana, kwaye kuyindlela ehambelanayo yokondla umntwana. I-placenta iqala ukuphuhlisa ngokukhawuleza, ukwandisa kwaye ibe yindawo ephambili, iimbilini zegazi, imijelo yegazi yenziwa - ukuphuhliswa komntwana kuqala.

Emva kwexesha elifutshane emva kokucwiliswa kweeseli zeeqanda ezahlukahlukeneyo zeseli ziqala ukwenza, eziza kubakho iinxalenye zomzimba womntwana kunye nezitho zawo. Kakade ngelo xesha ubulili bomntwana ozayo bebekwe.

Ukuba usesibelethweni, umntwana uhlala kumbhobho wamanzi, okhusela umntwana ngokumonakalisa ngengozi (ukuba umama, umzekelo, uxabela into). Ukongezelela, amanzi anika ubushushu bendawo kunye nendawo ekhululekile, okwaneleyo ukuhamba komntwana, kuze kube ngumzuzu wokuzalwa.

Uphuhliso lomntwana luvela ngokukhawuleza. Emva kwenyanga, ikhula ibe yi-4 mm kwaye inesibhanci esincinci se-liquid egcwele amanzi, malunga nobukhulu beqanda lejuba. Kwaye inyanga emva koko, umntwana ukhula u-30 mm kwaye sele sele kucace ngokucacileyo ukuhlula amalungu ayo omzimba-intloko, iingalo, imilenze. Ngelo xesha umntwana ozayo unesistim sakhe somnyo kunye nenkqubo yokujikeleza.

Isondlo sokondla esiswini esiqhutyelwayo sisenziwa ngentambo yomnxeba, enxulumene ne-placenta. I-placenta, ephakathi ngaphakathi kwesibeleko, njengesihluzi, ukwahlula izinto eziyimfuneko ukusuka kwigazi elingenayo lomama kumntwana kunye neebhloko, uvalela izinto eziyingozi. Imvelo emangalisayo! Kwaye ngexesha lokuzalwa komntwana, intambo yesibindi ingafikelela kwi-30 cm ukuya kwi-100 cm.

Ubude besiqhamo ekupheleni kwenyanga yesithathu sifinyelela kwi-9 cm, kwaye ubunzima bu malunga ne-30 grams, emva kweeveki ezine ezine Ubude bu-18 cm, kwaye ubunzima bomntwana buyi-120 grams. Ngeli xesha, umsebenzi omkhulu weentliziyo uyaqaphela kwaye kunokwenzeka ukuba kunqunyulwe isondo somntwana ozayo. Ukunyakaza komntwana kufutshane. Ngokuqhelekileyo, ezi ntshukumo ezibonakalayo zibonakala zibonakala emva kweeveki ezingama-18 ukuya ku-19 emva kokuchumisa.

Ngenyanga yesihlanu yokuphuhliswa komntwana, ubude bayo bufikelela kuma-25 cm, kwaye ubukhulu bayo bu malunga ne-700 amagremu. Kukho iimeko ezichazwe kumachiza xa abantwana abazalwe ngeli xesha bephila. Kwiiveki ezingama-28 emva kokukhulelwa, ekupheleni kwenyanga yesi-7 i-fetus ithathwa njengento ephuhlisiwe ngokupheleleyo. Sekujongwa njengesiqhelo kwaye akumangalisi, xa abantwana bezalwa ngeli xesha kwaye basinde, nangona ubunzima obungaphantsi.

Ngenyanga yesibhozo ubude bomntwana ngu-44 cm kwaye lufanelekile ukuphuhliswa, nangona unonophelo olulodwa olufunekayo kubantwana abatsha. Emva kweeveki ezingama-36, ngenyanga yeshumi elinesibini, umntwana unesisindo esingama-2.27-2.50 kg, amalungu akhe asebenzayo kwaye aphuhliswa kakuhle, kodwa ke, kufuneka aqwalaselwe ngokukhawuleza, kuba kubonwa ukuba ixesha elipheleleyo lexesha elipheleleyo lomntwana Iinyanga ezili-10.

Ubunzima obuqhelekileyo bomntwana kwixesha lokuphuhlisa iiveki ezingama-40 limele libe yi-3.2 -3.4 kg, kunye nobude balo - malunga ne-48 cm. Kule nqanaba, ukuzalwa kwendalo kwenzeka.

Sinike inkcazo emfutshane yezigaba zokuphuhliswa kwemvelo kwengane esibelethweni, ngaphandle kokuqwalasela iingqalelo zangaphandle, ezifana neziphumo zokusingqongileyo, iimpawu zofuzo, ukutya, isimo sengqondo sabazali, zombini ngexesha lokukhulelwa kunye nexesha lokubamba. Zonke ezi zinto zichaphazela kakhulu uphuhliso lomntwana. Akunakwenzeka ukulandela yonke into, kodwa abazali ababandakanyekayo ekuphuhlisweni komntwana wabo kufuneka badale zonke iimeko ezifanelekileyo. Ezi zibandakanya: ingqwalasela kwimpilo yodwa kungekuphela kwithuba lokunyuka, kodwa nangaphambi kokuba umntwana aqale ukukhulelwa, kwaye unakekele impilo efana nengqondo yomama. Ukuzalwa kwangaphambi kokuqala kungekhona ngenxa yezizathu ezingokwenyama, kodwa nangenxa yezixhala kunye nexhala. Ngenxa yoko, akuyiyo into yokuba bakholelwa ukuba ekuphuculweni komntwana esibelethweni, kubalulekile ukugcina imeko eqhelekileyo yendawo yomzimba kunye nengqondo ngexesha elifanayo.