Amphaka ndi agalu a abwenzi ambiri sakuleredwa kuyambira ali aang'ono, choncho amafunadi kudziwa kuti ali ndi zaka zingati? Kodi ndikudya chakudya cha ana amphaka ndi agalu? Kapena kudya chakudya cha galu wamkulu ndi mphaka? Ngakhale mutagula chiweto kuyambira ali aang'ono, mumadabwa kuti chiwetocho chili ndi zaka zingati, kodi ndi miyezi iwiri kapena itatu? Mzipatala, nthawi zambiri timagwiritsa ntchito mano kuti tidziwe zaka za ziweto.

Mano amakhala ndi kusiyana kwakukulu malinga ndi chakudya chomwe amadya ndi kadyedwe kawo, komanso kuchuluka kwa zidole zomwe zimagwiritsidwa ntchito pogaya mano ndi zokhwasula-khwasula. Choncho, kawirikawiri, zimakhala zolondola kwa ana agalu ndi amphaka, pamene agalu akuluakulu, kupatuka kungakhale kwakukulu. Zoonadi, zomwe zimatchedwa kupatuka zimakhalanso zapakatikati. Nthawi zambiri galu wazaka 5 amadya mafupa komanso mano omwe amang'amba ndi kung'amba mofanana ndi galu wazaka 10, koma simungathe kukumana ndi galu wazaka 10 ali ndi mano ofanana ndi agalu. galu wazaka 5. Nthawi ina ndinakumana ndi mwini ziweto yemwe anabweretsa chiweto cha tsitsi lagolide chomwe chimati chinali ndi zaka 17. Chimenecho chinali chinthu chachikulu, ndipo kunali kofunikira kudziwa zaka zake ndi thupi lake kuti alandire chithandizo. Potsegula pakamwa pake kuti awone mano ake, akuti anali ndi zaka 7 zokha. Kodi ndimakumbukira zaka za agogo ake molakwika?

Inde, kuyang’ana mano paubwana kungavumbulutsenso matenda ambiri a ziweto, monga kusowa kwa calcium ndi mano a mizere iwiri. Choncho ndikofunika kuphunzira momwe mungayang'anire kukula kwa mano, kudziwa zaka ndi thanzi lawo.

Agalu amayamba kupanga mano kuyambira masiku 19 mpaka 20 atabadwa; Pa masabata 4-5, ma incisors a m'mawere oyambirira ndi achiwiri ndi ofanana kutalika (ma incisors); Pa zaka 5-6 za msinkhu, dzino lachitatu lodula ndilofanana kutalika; Kwa ana agalu a masabata a 8, ma incisors onse a m'mawere amakula bwino, ndipo mano a m'mawere ndi oyera ndi ochepa komanso akuthwa;

Pa miyezi 2-4 pambuyo pa kubadwa, agalu pang'onopang'ono m'malo awo deciduous mano, kukhetsa ndi kukula incisors latsopano kuchokera incisor woyamba; Kuyambira zaka 5-6 miyezi, m'malo chachiwiri ndi chachitatu incisors ndi canines; Pa zaka 8-12 miyezi, onse molars m'malo ndi okhazikika mano (okhazikika mano). Mano okhalitsa amakhala oyera komanso onyezimira, ndipo ma incisors ali ndi zotuluka zosongoka. Ngati chikasu chikuwoneka, chimasonyeza tartar;

Pamene galu ali ndi zaka 1.5 mpaka 2, nsonga yaikulu ya mandibular incisor yoyamba (dzino lakutsogolo) imatha ndipo imathamanga ndi nsonga yaing'ono, yomwe imatchedwa kuti peak; Ali ndi zaka 2.5, nsonga yachiwiri ya mandibular incisor (dzino lapakati) yatha; Ali ndi zaka 3.5, nsonga ya maxillary incisors yatha; Pa zaka 4.5, pachimake chapakati maxillary dzino watha; Zaka zaunyamata za agalu zimatha, ndipo kusintha kwa mano panthawiyi sikukhudzidwa ndi zaka zomwe amadya, kotero kuti pang'onopang'ono akukhala osalondola.

Kuyambira zaka 5, incisor yachitatu ndi canine nsonga pamphumi m'munsi amavala pang'ono (osati flattened), ndi incisors woyamba ndi wachiwiri ndi amakona anayi mawonekedwe; Ali ndi zaka 6, nsonga yachitatu ya maxillary incisor imavala pang'ono, ndipo mano a canine amakhala osasunthika komanso ozungulira; Ali ndi zaka 7, mandibular incisors agalu akuluakulu amavala muzu, ndi kutalika kwa elliptical pamwamba; Ali ndi zaka 8, mandibular incisors a galu wamkulu amavala ndikupendekera kutsogolo; Pa zaka 10, kuvala pamwamba pa mandibular chachiwiri incisor ndi maxillary incisor ndi longitudinally elliptical; Agalu akuluakulu amakhala ndi moyo kwa zaka 10-12 ndipo sakhala ndi mano, nthawi zambiri chifukwa cha kuwonongeka kwakukulu;

Ali ndi zaka 16, galu wamng'ono amakhala ndi moyo wautali, kapena galu wokhazikika wachikulire wokhala ndi ma incisors osowa, mano osakwanira a canine, ndi mano ambiri achikasu osagwirizana; Ndili ndi zaka 20, mano a canine adagwa ndipo m'kamwa mwake munalibe mano. Kudya kunali makamaka chakudya chamadzimadzi.

Poyerekeza ndi agalu nthawi zambiri akukuta mano pa zinthu zolimba, zomwe zimapangitsa kuti zikhale zovuta kudziwa zaka chifukwa cha kuwonongeka kwa dzino, mano amphaka amakula nthawi zonse ndipo amatha kugwiritsidwa ntchito ngati njira yabwino kwambiri yoweruzira zaka.

Mano a canine amphaka ndi aatali, amphamvu komanso akuthwa, okhala ndi muzu ndi nsonga. Pakamwa pakamwa patsekeka, mano apamwamba a canine amakhala kumbali yakumbuyo yakunja kwa mano apansi a canine. Pali mpata kuseri kwa mano a canine, omwe ndi anterior molar. Premolar yoyamba ndi yaying'ono, yachiwiri ndi yokulirapo, ndipo yachitatu ndi yayikulu kwambiri. Ma premolars onse apamwamba ndi apansi ali ndi nsonga zinayi za mano, ndipo nsonga yapakatikati imakhala yayikulu komanso yakuthwa, yomwe imatha kung'amba mnofu. Choncho, amatchedwanso dzino long'ambika.