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Multilingual Illustrated DVD [Tutorial]

The Biology of Prenatal Development




CHIDZIDZO CHEBIOLOGY PAKUKURA KWEMWANA MUDUMBU

.Shona


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

Pakupera kwemasvondo 10 ne6,matanho ekurapa anoshandisa zvinobaya zvinenge tsono kana zvimwe pedyo ne'fetus' zvinokanganisa ma "hormone" obva avhunduka achibva aburitsa "noradrenaline", kana "norepinephrine", yosangana neropa. Vana vacheche kana vanhu vakuru vanowanikwawo nezvakadai kana vavhundutswa nekubayiwa.

Munhengo dzekufemesa, mapapu nezvakadaro zvavakutokwana.

Panobuda zvimwe zvichena Zvinodzivirira zvinonzi "vernix caseosa", zvinofukidza 'fetus'yese. "Vernix " iyi inodzivirira ganda kuti risakuvadzwe kana kupiswa ne"amniotic fluid".

Mushure memasvondo 19 ekufamba kwe "fetus" kufema kunotanga, nekurova kwemwoyo kwotanga kutevera nzira yemazuva ese inonzi "circadian rhythms".

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

Pamakumi maviri emasvondo chekunzwa, chirimukati-kati menzeve, chinenge chatokwana kuenzana nechemunhu mukuru uye chiri mukatikati menzeve Kubva pano, "fetus" inotanga kuratidza kunzwa zvakawanda.

Bvudzi rinotanga kumera mumusoro.

Zvinodiwa paganda zvavapo zvese, kusanganisa tumvere nezviri pasi peganda.

Pamasvondo makumi maviri ane rimwe kana maviri muchangosangana, mapapu anenge avekukwanisa kufema mweya. Ichi chinhanho chakakosha pakurarama sekuti kurarama kwemwana abuda mudumbu kunokwanisika Pane mamwe ma'fetus' Pane nzira dzanozikanwa nenyanzvi dzanachiremba dzekuti mwana akwanise kurarama kana aberekwa nguva isati yakwana.