Yimiphi izinguquko i-fetus ehamba ngayo ngesonto 3?
Ngalesi sikhathi, inqubo yokufakelwa imishini igcwaliswe ngokuphelele futhi iqanda le-fetal lisetshenziselwa udonga lwe-uterine. Endaweni lapho i- placenta izobe ikhona khona esikhathini esizayo , ifomu le-villi, futhi kulowo nalowo uqala ukukhula nge-capillary. Yilesi sakhiwo esibangela indawo yengane, eqala ukwakha kusukela emavikini angu-5-6.
Uma sikhuluma ngalokho okwenzeka ngqo kumntwana ozayo ngesikhathi sesonto lesithathu lokukhulelwa, kubalulekile ukuphawula ukuthi ngalesi sikhathi uhluke ngokuphelele kumuntu. Ubukhulu bayo abudluli u-0.15 mm kanti ngaphandle kombungu kufana nesimo se-auricle esakha ngaphakathi kwesibindi sesisu.
Isigaba sesibili sokugcoba, esibhekene nokubunjwa kwamashidi e-embryonic, siyaqhubeka. Ngalesi sikhathi, kubonakala ukuthi kwakhiwa i-neural tube, i-neural crest, i-chord, okuvela kuyo izingxenye ze-axial esikhathini esizayo. Ngesikhathi esifanayo, ibhukimakhi yesistimu yomshuwalense yesikhathi esizayo (izitsha, inhliziyo), okuncamelayo (pronephros) kumakwe.
Ngeviki lesithathu lobuthakathaka, umbungu unesiqalo sezinhlobo ezizayo zezinhlobo, amapeni nemilenze, ubuchopho, amathumbu, amaphaphu. Kukhona ukusabalalisa kwekhanda okuthiwa i-oropharyngeal, endaweni lapho umlomo wakhiwa khona esikhathini esizayo.
Kwenzekani kumama wesikhathi esizayo?
Ngalesi sikhathi owesifazane ulindele ukuqala kwezinsuku ezilandelayo zokuya esikhathini, ngokuvamile izibonakaliso zokuqala zibonakala njengezibonakaliso ze-premenstrual syndrome:
- isicasuli;
- ukwephulwa kwesifiso, ukubonakala kokuncintisana okungajwayelekile okuthandwa;
- ukubekezelelani emakhaleni anzima;
- ubuthakathaka;
- ukucasuka.
Ukufunda mayelana nokukhulelwa ngalesi sikhathi, ungasebenzisa ukuhlolwa okujwayelekile kokukhulelwa.