Oogqirha abahlanganyeli ngoluvo oluqhelekileyo olwamkelekileyo ukuba isiqhamo esikhulu ngumntwana onempilo kwaye onamandla. Okokuqala, oku kubangelwa ukukhathazeka ngenxa yeengxaki ezinokwenzeka kumama nomntwana ezinokuthi zenzeke ngexesha lokubeletha. Umntwana kusuka kwiihilogram ezinesihlanu kuya kuthathwa njengenkulu. Iintsana ezilinganisela ngaphezu kweekhigramgram ezihlanu zibhekwa njengezikhulu.
Ukukhula nokuphuhliswa komntwana kuxhomekeke kwimpilo kamama ozayo kunye nemeko ye-placenta, exhasa ubudlelwane bomama kunye noveliso. Ukuba akukho zinto ezinobungozi zangaphakathi ne zangaphandle, ngoko umntwana ukhula ngokuhambelana neendlela ezithile. Namhlanje kukho ukunyuka kwenyuka kwinani lamatyala ngokuzalwa komntwana omkhulu. Inani laloo matyala lihambelana nedatha eyahlukileyo ukusuka kwii-8 ukuya kweyesibhozo.
Iimbangela ze-fetus enkulu ngexesha lokukhulelwa
Izizathu zokuba kutheni umfazi okhulelwe anokuba nomdla kumntwana omkhulu ongabantwana, kodwa eziphambili ziyakwanda kwindleko yabafazi abakhulelweyo kunye nokuzalwa. Ngexesha lokukhulelwa, kufuneka ulungelelanise ukutya ukuze ukwazi ukuhlangabezana neemfuno zamandla zomama nosana. Ngelo xesha, kubalulekile ukuqwalasela ukuba le ntokazi sele ihamba phambili ekusebenzeni ngendlela esebenzayo njengaphambili, kwaye iindleko zayo zamandla ziyancipha.
Ukungalungi, ubunzima bomfazi buchaphazeleka ngokusetyenziswa kwezinto ezinamakha eziqholiweyo, ezandisa ukondla, ukusetyenziswa kwama-carbohydrates okukhawuleza ngokugqithiseleyo, ukutya okukhawulezayo kokutya, xa iikhalori zingenayo ixesha lokufumana ngokwaneleyo. Konke oku kunokukhokelela ekuphuhlisweni kwesifo sikashukela , esona sizathu sophuhliso lomntwana omdala.
Ubungakanani bentsholongwane buchaphazelekayo kwiimpawu ze-morphological of placenta. Phakathi kwabo kukho uxhomekeke ngokuthe ngqo. Ukuba ubukhulu bepentecenta bube ngaphezu kweentimitha ezintlanu, umthamo wayo kunye nommandla wenyuka, oku kubangela ukukhula okukhulu komntwana, njengoko iinkqubo zokuxilonga phakathi kwe-fetus kunye nempilo yezilwanyana zanda. Kukho ukuxhomekeke kwendawo yeplacenta kwisibeleko. Iziqhamo ezinkulu ziqhelekile xa i- placenta ifumaneka emva kwesibeleko .
Ukusetyenziswa okungalawulwayo kweziyobisi eziphucula umjikelezo wegazi we-utero-placental, kuhlakulela ukuphuhlisa umntwana omkhulu. Ukugqithiswa kwenkqubo ye-endocrine yomzimba wesifazane inokuba yinkcazo yoko kutheni unomntwana omkhulu. Ukuhluleka komzimba kubangela izifo ezifana nesifo sikashukela kunye nokukhuluphala. Isiqhamo sakhula singalingani, sitshintshe, kwaye siphuthuma.
Esinye isizathu sokuba i-fetus ibe yinto enkulu yi-perenashivanie. Ingaba yinkqubo yokuphila okanye yokwenyuka kwezilwanyana zokukhulelwa.
Iziqhamo ezinkulu zifumaneka rhoqo kubantwana-malschikov. Kwakhona, abantwana abakhulu bavame ukuzalwa koomama abatsha abangaphantsi kweminyaka engamashumi amabini nabafazi abadala kunama-30.
Ukuthintela iintsana ezinkulu
Ukuthintela ukuphuhliswa komntwana omkhulu kubaluleke kakhulu kubasetyhini abaneengxaki zesifo, isifo sikashukela okanye ukukhuluphala. Kulo lonke ukukhulelwa, oomama baya kulungelelanisa ukutya kwabo ukuze bahambelane nomgangatho wokwenza umsebenzi. Kubalulekile ukujonga ilanga le-glucose egazini. Abasetyhini banomntwana omncinci banconywa ukuba bafumane izibhedlele zangaphambi kokubeletha ukucacisa ukuxilongwa nokukhetha indlela efanelekileyo yokunikezelwa.