Ukubonelelwa kwezondlo ezivela kumama ukuya kumntwana, kunye nokuhoxiswa kwemveliso yokuxiliswa kwempahla eyenziwa ngoncedo lwekhondlo emzimbeni, edibanisa i-placenta kunye nengqungquthela ye-fetus.
Ulwakhiwo lwetambo lomgca
Kubalulekile, ukususela apho intambo yomnxeba iya kumntwana: kwinqanaba eliqhelekileyo liphuma kwindawo ephakathi kwiplacenta, nangona kunokwenzeka ukuba ukuhlukana okusemgangathweni - ukusuka kwelinye lemijikelezo yalo, okanye isinamathiselo yefom - intambo yomhlaba isuka kwiimbombo apho iinqanawa ezisuka kwi-placenta zilula. Ukubunjwa kwalo kuphelela ngeeveki ezili-12, kwaye intambo yomsebenzi iyasebenza ngaphambi kokuzalwa komntwana. Ngokuqhelekileyo ubude bomyinge womtya we-umbilical uvela kwi-40 ukuya kwi-70 cm, ukuba ungaphantsi kwe-40 cm, ngumkhonto omfutshane , ongaphezu kwe-70 cm ubude.
Zingaphi iinqanawa kufuneka zibe nentambo?
Ngokuqhelekileyo, intambo yomtya inemikhumbi emithathu: iirubrikhi ezimbini kunye nomtya, phakathi kwezinto ezinamandla kakhulu, ezivimbela ukuhanjiswa kwe-vascular kwi-strings umbilical: vartons jelly. Kodwa ngamanye amajelo e-2 kuphela afumaneka kwintambo yesigxina, kuma-50% amatyala ayichaphazeli nantoni na kwaye umntwana ukhula ngokuqhelekileyo. Kodwa, ukuba intambo yesibindi ineempahla ezimbini kuphela, kubalulekile ukuba uhlolisise iintso ze-fetus, kuba oku kungaba ngumqondiso wesifo esingumntwana esiswini sezintso, okanye kunoko, uphawu lokungabikho kwesinye seentso.
I-Node kwintambo yomlomo - yintoni na?
Kwixesha lokuphuhliswa kwalo, iirriyiti ezikhulayo zikhula kwaye ziguqule ngokuthe ngqo kwi-vein, kwaye kamva yonke intambo yomlomo iphendukela emoyeni. Ngokukhula ngokukhawuleza kwezi nqanawa, ukubunjwa kwamakhoyili avela kwiinqanawa kunokwenzeka, kunye nemivilini ye-varicose ye-veillical vein, i-ndo-like thickenings (iinkozo zamanga zentambo). Ngamaqhinga amanga, ukugeleza kwegazi kwintambo ye-umbilical akuphelelanga.
Iimpawu zinyaniso zentambo yomzimba zenziwa ngexesha lokunyuka komntwana kunye nexesha lomsebenzi, kodwa azinakho ukukhokelela kwimiphumo emibi, kuphela kwiimpawu zokuqala zokukhulelwa, i-knot eqinile ekugqibeleni ingadala i-atrophy ye-varton jelly kwaye ibangele ukuphulwa kwegazi lokuhamba kwintambo.
Kuyingozi kangakanani intambo kunye nentambo yomlomo?
Ngethuba lophando lwe-ultrasound kwisiqingatha sesibini sokukhulelwa, ngokuqhelekileyo umgaqo-nkqubo ubhalela ubukho bentambo emfutshane entanyeni. Kodwa, ngokuqhelekileyo ejikeleze ubuso bomntwana, kukho izibambo zomlomo kwaye kuyimfuneko ukuba ukhangele ukuba ingaba loo nto ijikeleze entanyeni. Oku akusoloko kuthembekile kwisifundo somsebenzi, kodwa kubonakala ngokucacileyo kwiDoppler. Kodwa intambo kunye nentambo yomgca ngokuqhelekileyo ayikho kwimiphumo emibi, ukuba akukho ziphi iingxaki ngexesha lokubeleka, kwaye akukona ukuchasana nokunikezelwa kwemvelo. Kodwa inkcazo yakhe okanye i-prolapse ye-strings ye-lobi esuka kwinqwelo yokuzalwa iyingozi kakhulu kumntwana, ekubeni ukunyanzeliswa kwetambo lomda phakathi kwamanzi okuzala kunye nomntwana kudala ku-asphyxia nokufa komntwana kwisifo se-90%.