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The Endowment for Human Development
The Endowment for Human Development
Improving lifelong health one pregnancy at a time.
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Multilingual Illustrated DVD [Tutorial]

The Biology of Prenatal Development




UKUFUNDA NGOKWENZEKAYO NGAPHAMBI KOKUZALA

.isiZulu [Zulu]


National Geographic Society This program is distributed in the U.S. and Canada by National Geographic and EHD. [learn more]

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Chapter 40   3 to 4 Months (12 to 16 Weeks): Taste Buds, Jaw Motion, Rooting Reflex, Quickening

Phakathi kuka 11 no 12 amaviki, isisindo sengane sanda cishe ngo 60%.

Amaviki awu 12 abalula ukuphela kwe-trimester yokuqala, noma ingxenye yokuthathu, yokukhulelwa.

Izindlala okuzwa ukudla manje agcwele emlonyeni.
Ekuzalweni, amahlumela okudla azosala kuphela olimini nasolwangeni.

Ukukaka kuqala kumaviki awu 12 kuqhubeke cishe amaviki awu 6.

Okokuqala okuphuma ethunjini lengane kuthiwa yi-meconium. Yingxube yama-enzymes okugaya ukudla, amaphrotheni, namaseli afile okukhishwa wumgudu wokugaya ukudla.

Kumaviki awu 12, ubude bezingalo nemilenze kwangenhla sekufike ekugcineni kokuqhathaniswa nomzimba. Izingalo nemilenze kwangezansi kuyaphuza ukufika esilinganisweni sako.

Ngaphandle komhlane nengaphezulu lekhanda, umzimba wonke wengane manje uyakuzwa ukuthintwa kancane.

Ukwehluka kokukhula okuncike ebulilini kuvela ngokokuqala. Isibonelo, izingane zamantombazane ziveza ukunyakaza kwemihlathi kaningi ngaphezu kwezabafana.

Ngokwehlukile ekubalekeni okubonwe ngaphambidlana, ukuthintwa eduze komlomo manje sekudala ukubheka ngasekuthintweni nokuvula umlomo. Lezi zenzo kuthiwa yi "rooting reflex" futhi siyaqhubeka nangemuva kokuzalwa, kusize ingane ezelwe ithole ibele likanina uma incela.

Ubuso buyaqhubeka nokuvuthwa uma ukungena kwamafutha kuqhubeka nokugcwalisa izihlathi futhi kuqala ukumila kwamazinyo.

Kumaviki awu 15, kufika ama-stem cells akha igazi aphindaphindeke emongweni wamathambo. Iningi lokwakheka kwamaseli egazi kuzokwenzeka lapha.

Yize noma ukunyakaza kuqala Kumbungu onamaviki awu 6, owesimame okhulelwe uqala ukuzwa ukunyakaza kombungu phakathi kwamaviki 14 no 18. Ngokwesiko, le sehlakalo kuthiwa wukukhahlela.