Muhama dzedu duku uye mumunhu, nguva yekusimudza postembryonic ine zvikamu zvitatu:
- Vechidiki. Iyi ndiyo danho rekutanga - rinotsanangurwa nenguva kubva pakuberekwa kusvikira pakupera, zvichienderana nekukura kwakasimba, kugadzirwa kwekupedzisira kwenhengo dzose uye maitiro, uye zvinogona kufamba nenzira dzakasiyana. Kunyanya, mapoka maviri ekusimudzira postembryonic anosiyaniswa: zvakananga uye zvisingaoneki. Kana mwana achangoberekwa akafanana nemunhu mukuru nezviratidzo zvekunze uye zvikamu zvekusangana kwehutano hwezvemamiriro ehupenyu, zvino izvi zvinonyanya kukurudzirwa mberi. Mukuda kwekusimudzirwa kusina kujeka, chimiro chinotarisana nekugadzirisa muviri.
- Kuyaruka, kana nguva yekupera. Ichi ndicho chimwe chezvikamu zvakakura kwazvo zvekusimudzira postembryonic, apo mutumbi unokwanisa kubereka.
- Kukwegura. Nzvimbo yekupedzisira yehupenyu hwehupenyu, iyo inoguma nerufu kana kukamanikidzwa rufu.
Zvikamu zve postembryonic nguva yekukura kwevanhu
Nhengo uye maitiro evanhu vaduku anoumbwa mudumbu reamai, pano mwana anogamuchira maitiro ejeneti, ndicho chinhu chinokosha chekuvandudzwa kwayo. Iyo intrauterine nguva ine zvikamu zvayo pachayo, imwe neimwe iyo inoratidzwa nehuwandu hwekuchinja.
Semuenzaniso, mumwedzi wechipiri wekudzivirira embryo inofanana nemunhu mukuru, kunyange zvazvo hukuru hwayo hahupfuuri mamita matatu, uye kuvapo kunze kwemuviri waamai hazvibviri. Nenguva yekuberekwa uremu hwemwana hunosvika kusvika ku 3-4 kg, kureba ndeye 45-55 cm, uye maitiro anovimbisa basa rinokosha romutumbi anenge atogadzirira kushanda zvakazvimiririra.
Pakuona kwechechecheche, zvinonzwisisika kuti nzira yehupenyu hwake hwekupedzisira-embryonic ichave yakananga. Sezvo munhu mukuru akasiyana kubva kune munhu mukuru chete muhupamhi hwemuviri uye kusakwana kwemamwe maitiro.
Iyi nguva yekuberekwa kwekuvandudzwa kwevanhu, senzira yekufungidzira, yakanyatsodzidza, uye yakakamurwa kuva:
- Nguva yakangoberekwa mazuva gumi pashure pokuberekwa. Panguva ino, mwana anoshandisa nguva yakawanda yezuva muchiroto, uye pakukura zvakakwana uye kubudirira anoda chibereko chemuti.
- Nguva yepabonde - kubva pamazuva gumi kusvika pagore. Munguva iyi, nguva yakareba inokonzera kukura kukuru mupfungwa uye mumuviri. Pakupera kwegore rokutanga rehupenyu, vazhinji vevana vakatotomira zvakasimba pamakumbo avo, vachidya zvokudya zvakasiyana-siyana, shanduro dzekutanga dzinotaura.
- Mwana achiri muduku makore 1-3. Muvana, kuwirirana kwekufambisa kunovandudza, vanokwanisa kunyatsojeka uye nguva dzose vachiisa pfungwa nezvinodiwa, nguva dzose vanozadzisa mazwi, vanofarira zvikuru nyika dzakapoteredza.
- Uhu hwakatanga makore 4-7. "Radiyo Kryuchochki" inopararira mukati memasikati - mwana haazozorori kusvikira agamuchira mhinduro kumubvunzo wakabvunzwa, uye iyo yekupedzisira inouya yakawanda.
- Mwana wechipiri makore 8-12. Vana vari muzera rino vane chimiro chekuchinja mufananidzo we worldview, pane kugadzirisa kwekugadzirwa kwemotokari.
- Nguva yevechiri kuyaruka ndeyegumi nemakore gumi nemaviri. Hemoni dzinotanga kubudiswa, maererano nezvayo, kune kuchinja kukuru mumuviri wemwana, zvose mumuviri uye mupfungwa-mupfungwa.
- Nguva yevechidiki makore 17-21. Mamiriro emuviri wechidiki anenge akafanana neaya evanhu vakuru.
- Nguva yakakura ndiyo makore 22-60. Panguva ino, masangano ose anoumbwa, kukura kumira, uye munhu pakupedzisira anopinda muchikamu chekubereka.
- Vakwegura vane makore 61-74. Inozivikanwa nezvimwe zviratidzo zvekunze zvinoratidza kusvibiswa kwemuviri.
- Nguva yakashata ndeye makore 75-90.
- Yenguva refu-mvere - makore anopfuura 90.