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The Biology of Prenatal Development


8 - 12 Semanas


IBHAYOLOJI YANGAPHAMBILI KOKUBELETHWA KOMNTWANA

.Ndebele [Sindebele (Ndebele)]


 

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O Período Fetal (8 semanas até o Nascimento)

Capítulo 37   9 Semanas: Engole, Suspira e se Estica

Isikhathi se-fetus siqhubeka bekufike isikhathi sokubeletha.

By 9 weeks,ukukhotha iminwe kuyaqala begodu i-fetus ingagwinya i-amniotic fluid.

I-fetus seyiyakwazi nokubamba into ethile, ise ihloko phambili nemuva, ivule beyivale umhlathi, isikinye ilimi,ikhokhe umoya, izelule.

Imizwa esebusweni, ezandleni, nasezithendeni zeenyawo ingezwa ukuthintwa okuncani.

"Ekuphenduleni ukuthintwa okuncani esithendeni senyawo," i-fetus izakugoba inyonga nedolo begodu ingasonga izwani.

Izivalo zamehlo zivalekile.

Emphinjeni, kuthoma ukuvela izitho zephimbo kubonakalisa ukuthoma kokukhambisana kwephimbo.

Kuma-fetuses wabesifazane, isizalo siyabonakala namaseli angakakhulu wokubeletha, abizwa nge-oogonia, athoma ukuphindaphindana ngaphakathi kwesizalo.

Izitho zangasese sithoma ukubonakala njengezowesifazane noma wesilisa.

Capítulo 38   10 Semanas: Revira os olhos e Boceja, Unhas e Impressões Digitais

Ukukhula phakathi kweemveke ezi 9 nezi 10 ukukhula komzimba ngaphezulu kwe-75%.

Eemvekeni ezi 10, ukusebenza kwelihlo elingaphezulu libangela ukuphenduka kwamehlo.

I-fetus iyazamula ivamise ukuvula nokuvala umlomo.

Ama-fetuses amanengi amunya umuno.

iincenye zamathumbu amancani ngaphakathi kwekaba abuyela ngaphakathi komgodi ongaphakathi kwamathumbu.

Ukuqinina kwamathambo kuyathoma emathanjeni amanengi.

Amazipho weminwe namazwani athoma ukukhula.

Imigadangiso yemino ehlukileko iyavela iimveke ezi-10 emva kokumumatha (fertilization.) Ikambiso le ingasetshenziswa Ukuhlukanisa epilweni yoke.

Capítulo 39   11 Semanas: Absorve Glicose e Água

Eemvekeni ezi-11 ipumulo nezindebe zomlomo ziphelile ukwenzeka. Njengesinye nesinye isitho somzimba, isimo sazo singashintsha kwelinye nelinye izinga lepilo yokukhula komuntu.

Amathumbu amancani athoma Ukwamukela amanzi ne-glucose edliwe yi-fetus.

Nanoma ubulili bakheka ekumumatheni, izitho zobulili ziyabonakala kwanjesi ngokuthi ngezesilisa noma zesifazane.
8 - 12 Semanas