Skip Navigation

DVD Ilustrado Multilíngue

The Biology of Prenatal Development


6 Meses - Nascimento


IBHAYOLOGI LEPHATSELENE NEKUKHULA KWEMNTFWANA LOSESESIBELETFWENI SENINA

.Siswati [Swati (siSwati)]


 

Baixar Versão em PDF  O Que é PDF?
 

Capítulo 43   5 a 6 Meses (20 a 24 Semanas): Responde ao Som; Cabelo e Pele; Idade de Viabilidade

Emavikini la-24 lujwabu lwemehlo luyavuleka futsi ifithasi iyacwabita nakukhona lokuyetfusako. Lokunyakata lokwenteka nakukhona umsindvo lomkhulu longakalindzeleki kusheshe kube khona kumafithasi lamasikati.

Labenta luhlolo babika kutsi kuba semsindvweni lomkhulu kungaba nemphumela lomubi emphilweni yefithasi. Umphumela lomubi lovela masinyane ufaka ekhatsi kwenyuka kwelizinga lekushaya kwenhlitiyo sikhatsi lesidze, kugwinya kanyenti,kanye nekugucuka masinyane kwendlela ifithasi letiphetse ngayo. Imiphumela lemibi lengavela esikhatsini lesitako ifaka ekhatsi kungeva etindlebeni.

Lizinga lekuphefumula kwefithasi lingenyuka lize lifike ku-44 wemahlandla lalandzelanako ekudvonsa nekukhipha umoya ngeliminithi.

Ngekuhamba kwanyangatsatfu wesitsatfu wekutetfwala, kukhula masinyane kwengcondvo kudla ngetulu kwa-50% wemandla lasetjentiswa yifithasi. Sisindvo sengcondvo senyuka emkhatsini wa-400 na 500%.

Emavikini la-26 emehlo akhipha tinyembeti.

Tinhlavu temehlo tibona kukhanya le ekucaleni emavikini la-27. Lokunyakata loku kukala bunyenti bekukhanya lobufinyelela kurethina iphilo yemuntfu yonke.

Tonkhe tincenye letidzingakalela kutsi umuntfu akwati kunuka tiyasebenta. Lucwaningo lolwentiwe ebantfwaneni labatelwe ngembikwesikhatsi luveta kutsi umntfwana ukwati kuva kutsi kukhona lokunukako le ekucaleni emavikini la-26 ngemuva kwekwakheka kwembewu yemuntfu.

Kufaka intfo lenongotelako emantaneni e-amniyoni kwenyusa lizinga ifithasi legwinya ngalo. Kuphikisa loko, kuba khona kwehla kwelizinga ifithasi legwinya ngalo nangabe kufakwe intfo lebabako. Lokulandzela loko kuvamisa kuba kuntjintja kwesimo sebuso.

Ngekusebentisa luchungechunge lwekunyakata ngekutsatsa tinyatselo lokunjengekuhamba,ifithasi ishaya goboluphonjwana.

Ifithasi ayisabonakali kushwaphana kakhulu njengaloku lamanye emafutsa langakasetjentiswa ngumtimba akhela ngaphansi kwesikhumba. Emafutsa adlala indzima lebalulekile ekugcineni lizinga lekushisa kwemtimba likahle nasekubekeni emandla ngemuva kwekutsi umntfwana atelwe.

Capítulo 44   7 a 8 Meses (28 a 32 Semanas): Discriminação de Sons, Estados Comportamentais

Emavikini la-28 ifithasi iyakwati kwehlukanisa emkhatsini wemsindvo loshaya etulu naloshayela phansi.

Emavikini la-30, kunyakata kwekuphefumula sekwetayeleke kakhudlwana kubonakala futsi kwenteka 30 kuye ku-40% wesikhatsi kufithasi leyetayelekile.

Ngekuhamba kwetinyanga leti-4 tekugcina tekutetfwala, ifithasi iba nesikhatsi lapho inyakata shengatsi iyati kutsi yentani lokulandzelwa sikhatsi sekuphumula. Letindlela leti tekutiphatsa tikhombisa indlela lecake ngayo nalechubeke njalo yandza yeluhlelo lolukhulu lwekuphefumula.

Capítulo 45   Os Membros e a Pele

Emavikini cishe la-32, i-alviyoli sibili, kumbe tinhlayiya "tetikhwama" temoya, ticalisa kukhula emaphashini. Itawuchubeka yakheke kuze kube minyaka le-8 umntfwana atelwe.

Emavikini la-35 ifithasi seyibamba kahle icinise.

Kubonakala shangatsi ifithasi letfolwe tintfo letinhlobonhlobo isesesiswini kuyenta itsandze tinongo letitsite ngemuva kwekutalwa. Sibonelo, lawo mafithasi bonina bawo bebadla i-anisi, lentfo leyenta kutsi ilikhorayisi inambitseke ngalendlela lenambitseka ngayo, akhombisa kutsandza i-anisi ngalesikhatsi satelwe. Bantfwana labasandza kutalwa labangakayitfol i-anisi basesesiswini bona abayitsandzanga i-anisi.

Capítulo 46   9 Meses até o Nascimento (36 Semanas até o Nascimento)

Ifithasi ngiyo lecalisa Umsebenti wekutalwa kwayo ngekutsi ikhiphe linani lelikhulu lehomoni lebitwa ngekutsi yi-estrojeni ngaleyo ndlela icalise ingucuko yekusuka ekubeni yi-fithasi ibe ngumntfwana losandza kutalwa.

Kutalwa kwemntfwana kwenteka ngekufinyela ngemandla kwesibeletfo, lokugcina ngekutalwa kwemntfwana.

Kusukela ekwakhekeni kwembewu kuze kufike ekutalweni kwemntfwana kanye nangale kwaloko, kwakheka kwemuntfu yintfo legucugucukako, lechubekako, kanye nalecakile. Lwati lolusha loluvelako mayelana nalesehlakalo lesi lesimangalisakothis luchubeke njalo nekukhombisa indlela kwakheka kwefithasi lekubaluleke ngayo ekuphileni kahle kwemuntfu imphilo yakhe yonkhe.

Njengaloku kucondzisisa kwetfu kwakheka kwemuntfu losengakatalwa kuya ngekutfutfuka, kanjalo nelikhono letfu ekwenteni imphilo lenhle ibe ncono - kuto totimbili tikhatsingembikwekutalwa nangemuva kwekutalwa kwemntfwan.
6 Meses - Nascimento