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The Endowment for Human Development
The Endowment for Human Development
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Multilingual Illustrated DVD [Tutorial]

The Biology of Prenatal Development




BAYOLOJIYADA KORITAANKA DHALASHADA KA HOR

.Somali


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

Usbuucyada 11ka iyo 12ka dhexdooda, miisaanku uurjiifku wuxu kordhaa 60% ku dhawaad.

Laba iyo toban usbuuc waa astaanta dhammaadka saddex daloolka, ama saddex-biloodlaha koowaad ee uurka.

Unugyo dhadhamo kala duwan ayaa ku yaal afka gudihiisa haatan.
Goorta dhashada unugyada dhadhamadu waxay ku hari doonaan oo keliya carrabka iyo dhanxanagga.

Dhaqdhaqaaqa wax saaridda qabsinnadu wuxu bilaabanayaa ugu horreyntii usbuuca 12ka wuxuna soconayaa taqriiban 6 usbuuc.

Walaxa ugu horryentii ka soo baxa uurjiifku iyo malawadka hadda-dhalayga waxa lagu magacaabaa mal. Wuxu ka sameysan yahay ensaymes dheefshiideed, brotiin, iyo unugyo dhintay oo uu iska soo saaray dheefshiid mareenku.

Usbuuca 12ka, dhererka addinka hore wuxu ku dhawaad gaaray qiyaastiisu ugu dambeysay ee jirka. Addimada hoose waxay qaatan in ka dheer si ay u gaaraan qiyastooda ugu dambaysta ah.

Marka laga reebo dhabarka iyo madaxa korkiisa, dhammaan jirka uurjiifku haatan wuxu ka jawaabaa taabasho fudud.

Farqiyada koritaanka ku saleysan sinjiga waxay soo baxayaan marka ugu horreyso. Tusaale, uurjiifyada dheddiga waxay muujiyaan dhaqdhaqaaqa qalka in ka badan kan labka.

Si ka soo horjeedo jawabtii hore lo arkay ee dib-u-gurashada Xoodin afka agtiisa waxay haatan dhalinaysaa, u jeesasho dhinaa xoodinta iyo furitaan afka. Jawaabtani waxa la yiraahdaa "jawaan-celin automaatik ah ee raadin" waxayna sii socotaa dhalashada kadib, ka caawintaa hadda-dhaleyga helidda ibta hooyadiisa/hooyadeed waqtiga nuujinta.

Wajigu wuxu sii wadayaa inuu weynaado iyadoo ay baruur kayd ah ku bilaabaneyso inay buuxiso camanka sameysmidda ilkuhuna way bilaabaneysaa.

Usbuuca 15ka, waxa imaanaya unugyada taranka dhiig-sameynta waxayna ku badanayaan dhuuxa. Sameysmidda unugyada dhiigga badankoodu waxay ka dhici doontaa halkaan.

Inkastoo dhaqdhaqaaqu ku bilowdo embriyaha usbuuca 6da, naagta uurka leh waxay horta dareemeysaa dhaqdhaqaaqa uurjiifka usbuuca 14ka iyo usbuuca 18ka dhexdooda. Sida dhaqanka ah, dhacdadan waxaa lagu wacay dhaqsad.


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