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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




IBINYABUZIMA BIJYANA NO GUTWITA

.Kinyarwanda


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 41   4 to 5 Months (16 to 20 Weeks): Stress Response, Vernix Caseosa, Circadian Rhythms

Mugihe cy'ibyumweru 16, impamvu zateye urushinge kwinjira munda y'igi ruhungabanya imbuto igisubizo kikagorana impamvu zituma utwite zikajya ahagaragara, cyangwa se impamvu zituma amaraso ajya ukwayo. Impinja zavutse n'abantu bakuru berekana ibimenyetso bimwe muburyo bitagenda neza.

Mubuhumekero, umuhogo uba noneho ugaragara.

Umweru urinda umuhogo, witwa urutonde rw'amenyo, ubu utwikiriye agahinja. urwo rutonde rurinze uruhu ngo rutagira ikiruhungabanya biturutse ku mavuta.

Guhera kubyumweru 19 agahinja karakina, kagahumeka, n'umutima utangira gutera ukurikije ibiriho ku munsi aribyo bitwa akazi k'umutima.

Chapter 42   5 to 6 Months (20 to 24 Weeks): Responds to Sound; Hair and Skin; Age of Viability

Mugihe cy'ibyumweru 20 ingoma y'amatwi, ituma umuntu yumva, iba imeze nk'iy'umuntu mukuru kuburyo nta kindi ikeneye imbere mu gutwi. Guhera ubu noneho, agahinja gashobora kwerekana ko kumva urusobe rw'amajwi.

Umusatsi utangira gukura ku ruhu rw'umutwe.

Ibigize uruhu, n'izindi ngingo z'umubiri biba byuzuye, harimo igikuriro cy'umusatsi n'uduturugunyu.

Mugihe cy'ibyumweru 21 kugeza kuri 22 nyuma yo gusama, ibihaha bigira ubushobozi bwo guhumeka umwuka. Ibyo byerekana ko umwana aba yakuze kubera ko aba nyuma y'ingobyi ibyo ariko bishoboka kuduhinja tumwe na tumwe. Hakoreshejwe ubuhanga buhanitse mubyubuvuzi birashoboka kuramira ubuzima bw'abana bavuka badashitse.


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