Yintoni beendawo?

Namhlanje, "beendawo" gama ayimangalisi. amantombazana Modern ziyayazi ukukhulelwa nokuzala ulunge ngaphezu koonina babo yaye ogogo. Noko ke, inkoliso yezi ulwazi kukha. Ngoko ke namhlanje sifuna ukuthetha yintoni esizalweni, ngumkhaya. Ekuqaleni, kunzima ukuyiqonda? Baby isihlalo has iipropati ukukhusela imveku kwiziphumo eziyingozi kunye izinto eziyityhefu. Enyanisweni, lo mzimba uyintsumantsumane lokwenene simanga semvelo.

phantsi kokhuselo

Beendawo - luhlobo yamajoni omzimba. Lusetyenziswa umda phakathi eziphilayo ezimbini. It beendawo inikeza yabo eqhelekileyo intsebenziswano ubukho kunye nokungabikho zongquzulwano ngumzimba. Le ezintathu yokuqala ye zokukhulelwa - anzima kakhulu. Ngokwenxalenye ngenxa ngumkhaya sele angekayazi eyona nto ngoko ke umzimba ndiseyimbumba, ikhuselwe ngokupheleleyo. Malunga 12 iiveki, yena inxaxheba ngokupheleleyo kulo msebenzi. Ukususela ngoku, ukuba ukulungele ukwenza yonke imisebenzi yayo.

wenza njani ngumkhaya?

Oku ingongoma ebalulekileyo, ngaphandle apho asiyi kuba nako ukuqhubeka incoko yethu. Igama elithi "beendawo" uza kuthi evela kwisiLatini. Oku bubonakala "cake". Inxalenye yale nto villi ezizodwa, apho eqala ukuphuma ukususela kwimihla zokuqala zokukhulelwa. Yonke imihla yokuba isebe ngakumbi nangakumbi. Kulo mzekelo, ngaphakathi kuzo igazi wosana olo. Kwangaxeshanye ngaphandle ungena igazi koomama ahlanganiswe nezondlo. Oko kukuthi, ngumkhaya uphethe umsebenzi wokwahlula kuqala. Oku kubaluleke kakhulu kuba eli qumrhu lilawula utshintshiselwano kwezinto phakathi kweenkqubo ezimbini ezivaliweyo. Ngokwale ngxelo, kwicala yangaphandle nangaphakathi ngumkhaya na isakhiwo eyahlukileyo. Ngaphakathi, oko egudileyo. Kwicala elingaphandle - rhabaxa, lobed.

umsebenzi uthango

Ntoni igama elithi "umqobo placental"? Makhe digress kancinane kwicala le amalungu lweenkqubo. Njengoko sele kukhankanyiwe, oko villi unique ukunika yokucolwa phakathi umfazi kunye bungu. igazi likamama kuzisa usana ioksijini kunye nezondlo, aze anike engekazalwa okhulelwe carbon intombazana dioxide. inkqubo excretory de babe enye ezimbini. Nguwo ke lo mfihlakalo mkhulu. isithintelo Placental esahlula igazi unina kunye olungekazalwa kakuhle ukuze tu.

Ekuqaleni, kubonakala emangalisayo, kodwa ezimbini ezahlulwe inkqubo ekhethekileyo nemithambo eludongeni ndizayo. It emane sidlula oko kubalulekile ukuba uphuhliso olungekazalwa. Kwelinye icala, izinto eziyityhefu, enganobungozi okanye eyingozi zigcinwa apha. Ngoko ke, oogqirha bathi ukuqala ukusuka kwiiveki 12 umama okhulelweyo sele kunokwenzeka ukuba lokuphumla kancinane. Ngumkhaya uyakwazi ukukhusela nxamnye nemigibe ezininzi ezibi zomzimba lomntwana.

Kuphela ebaluleke kakhulu

Le isithintelo placental zonke izondlo eziyimfuneko neoksijini. Ukuba ugqirha uthi uphuhliso okungaqhelekanga yosana olungekazalwa, oko abele amayeza ethile ukwandisa igazi kuqukuqela ngumkhaya. Ngoko ke, ukunyusa ubungakanani mpilo ongena usana. Noko ke, asingabo bonke elula kangaka. Yokubambezeleka uvalo eziqulathwe ntsholongwane egazini sikanina kunye neentsholongwane, kwakunye antibodies bagqibileyo xa ingxabano Rhesus. Yiloo nto ke isakhiwo eyodwa yale inwebu ihleliwe ukulondoloza osadaleka ezahlukahlukeneyo.

Akunakwenzeka ukuba ziqaphele selectivity eliphezulu hlulo. Ukuhlaselwa isithintelo placental into efanayo ngokwahlukileyo ukoyisa lo umda waya unina kunye olungekazalwa. Umzekelo, fluorine Kulula kakhulu kwaye ingena ntokazi usana, kodwa hayi ephoselwe ngasemva. Le meko ifana ne bromine.

Ngenxa yokuba apho kukho ummiselo ukutya?

Sele waxelela umfundi ukuba ngumkhaya eyohlula nkovu unina kunye engekazalwa. Njengoko lo emvelo ukwazi ukusebenzisa kwindlela ogqibeleleyo umthetho, xa kuza ukuba ngokuxhamla njengomqobo, noko kuyingozi, walibala? Enyanisweni, sithetha apha nje malunga ezimbini iindlela. Emva koko, sihlolisise kancinci ngamnye kubo.

Okokuqala bonke abanomdla lilawulwa nguMthetho ukuhamba kubalulekile, izondlo thina. Yinto elula ngokwaneleyo. Lipids, carbohydrate, iiprpthini kunye neevithamini ifumaneka rhoqo egazini sikanina. Ngenxa yoko, umzimba unakho ukwenza isekethe elungeleleneyo. Kuya ekuqaleni iqondwe ukuba ukufumaneka kwezinto ezithile egazini umama nomntwana yahlukile.

Le permeability ngumkhaya

Kuba nzima kakhulu xa sithetha izinto eziyityhefu ufake umzimba a abakhulelweyo. Ngumkhaya eyohlula nkovu kunye negazi. Ngoko ke, abo obuba- baye kwi egazini likamama wakhe, musa mandingaweli kakuhle olungekazalwa. Noko ke, edlula ibilithuba okucoca zendalo (wesibindi nezintso) ekwimo eyintsalela, solo banokubenzakalisa abo usana. Inyaniso yokuba, ngempazamo bavaleleke emzimbeni kwezinto unina (amachiza, amachiza) kuba nzima ukuyeka ngakumbi. Baya bavame kugqitha njengomqobo placental.

umsebenzi Limited uthango

Nature ayikwazanga ngaphambili kuphuhliso lwamashisini mihla. Ngoko ke, iimveliso kushishino yemichiza kulula ukuba lidlule umqobo yendalo. Eziyiyo usongo ukukhula kunye nophuhliso olungekazalwa. Ubungakanani elalana ngumkhaya zixhomekeke iimpawu kunye neempawu lwento ethile. Sizakukhankanya imizuzu nje embalwa, eneneni kukho abantu abaninzi ngakumbi. Ngenxa yoko, iziyobisi ukuba ubunzima eziphilayo (ngaphantsi kwama-600 g / Mol) zifana njengomqobo placental ngokukhawuleza. Ngelo xesha, abo enenzala ephantsi, ngenkankulu ingangena. Umzekelo, oku insulin kunye lweeHedfowuni, nto leyo ngaphandle koloyiko emiselweyo ngexesha lokukhulelwa.

Kukho omnye umqondiso. izinto ezityebileyo-enyibilikayo ilungile kakhulu ukungena ngokusebenzisa ngumkhaya ngaphezu kwamanzi emanzini. Ngoko ke, iikhompawundi esibamba ezinjani ngakumbi. Ngaphezu koko, oogqirha bazi ukuba amathuba elalana kwezinto ngokusebenzisa ngumkhaya kuxhomekeke kwixesha yokuhlala beziyobisi egazini. Onke amachiza elide-ukubambela yingozi ngaphezu lawo umzimba ngokukhawuleza.