Kodi mano a anthu ambiri? Kodi mano ambiri munthu wasintha? Chiwerengero cha mano mkaka mwana

Today ife angakuuzeni mwatsatanetsatane za angati mano a anthu, komanso za dongosolo lawo, ntchito, mitundu, ndi zina zotero.

mwachidule

Mano ndi mafupa mapangidwe ili mu M'mimbamo m'kamwa mwa munthu. Iwo zili mu mawonekedwe a arcs wa 2 (inayake). Ngati munthu somknet m'munsi ndi zibwano chapamwamba pamodzi, mano atsekedwa, kulekanitsa M'mimbamo buccal wa M'mimbamo yake. Mu kuluma izi vuto anthu anapanga, amene anaphunzira ndi sayansi monga orthodontics.

mano wathanzi - ndi chizindikiro wabwino wa chamoyo wonse. Komabe, anthu ambiri sadziwa ndikungofuna moonetsera chikhalidwe chake labwino komanso zokongola ndi moyera-kumwetulira. Ndipo chochita, tiona kumapeto.

Maonekedwe ndi Mitundu mano

Pamaso ndikukuuzani kuti pali anthu ambiri mano, muyenera kudziwa ndendende mmene amasiyana mawonekedwe ndi cholinga. Pajatu aliyense dzino limodzi amachita ntchito, womwe adani a chakudya, kuchitsatira mkamwa mwanu ndipo kutafuna yekha. Iwo ayenera kukumbukira kuti iwo amagwira ntchito matchulidwe olondola a phokoso.

cutters

mano awa Chilwa kutsogolo dentition ndi (4 pamwamba ndi pansi pa nambalayi). dzina lake iwo ngongole chakuti ali ndi lakuthwa zotsogola njira imene munthu mosavuta kuluma kuchokera katundu aliyense, kuphatikizapo wokongola lolimba.

canines

Pa mbali zonse za incisors anthu ndi phirilo zooneka mano, kapena otchedwa "canines" (2 pamwamba ndi pansi pa yofanana). Iwo apangidwa kugwetsera tating'ono ting'ono mankhwala lonse. Tikumbukenso kuti awa mitundu mano a anthu m'malo ofooka anayamba kuposa nyama zolusa. Ichi ndi chifukwa chakuti anthu sagwiritsa ntchito yaiwisi, waukali ndiponso fibrous zakudya zoterezi, monga nyama.

molars Small

Zochita matenda, mano awa otchedwa premolars. kutafuna awo pamwamba ali timabamputimabampu awiri. Monga mizu, pamenepo akhale amodzi kapena awiri. molars Small anafunika munthu onongani mankhwala, komanso umapezeka zina. Komanso, premolars angagwiritsidwe ntchito chakudya womwetula.

molars Large

Anapereka mano, yomwe ili m'munsi ndi nsagwada chapamwamba amatchedwa molars. Mosiyana yapita mapangidwe fupa, iwo amasiyana kukula kwake zikuluzikulu, ndipo ndi muzu kuposa lina (pamwamba atatu ndi pansi - awiri). Komanso, ali ndi kutafuna pamwamba ndi grooves wapadera, amene ayitanidwa fissures. Komanso pamwamba pa molars, pali timabamputimabampu anayi kapena asanu. Ntchito yaikulu ya molars - ndi akupera ndi shredding chakudya mu zamkati isanafike ingestion mwachindunji.

Ndiye kodi molars anthu ambiri? Chiwerengero cha premolars kwa anthu athanzi ndi pamwamba anayi ndi nambalayi pansi. Koma molars, chiwerengero chawo ndi chimodzimodzi yaing'ono.

mitundu mano

Tikumbukenso kuti munthu miyeso iwiri ya mano: kanthawi mpaka kalekale. Malinga ndi matabwa ake ndi ntchito ofanana kwambiri kwa wina ndi mzake. Komabe, kukula kwa zosakhalitsa mapangidwe fupa ndi laling'ono kwambiri ndipo ndi mthunzi osiyana (zoyera bluish). Mwa njira, iwo amatchedwa "mkaka."

Mu chitukuko mano pulayimale ndi okhazikika, amasewera ndithu kwambiri. Ndipotu, maphunziro monga ana kusunga danga zofunika incisors m'tsogolo, canines, premolars ndi molars, komanso kutsogolera kukula kwawo zambiri. Dziwani kuti chiwerengero cha mano mkaka anthu ndi zidutswa 20 okha. Kawirikawiri kuyamba zimatha kuyambitsa pa za 3-6 miyezi, ndi kwathunthu kusiya zaka 2,5 kapena 3.

Kudziwa mmene mkaka mano munthu ayenera kupita ku malongosoledwe a zokhazikika lapansi. kawirikawiri kuonekere mwamsanga 5-6 zaka kwathunthu m'malo nthawi zaka 12-14. The molars woyamba kukula mu malo kumbuyo mkaka ndi. Pamene ili nthawi, nthawi Zubikov mizu ana kupasuka ndipo kenako akugwa. Monga amadziwika, ndondomeko izi zimachitika awiriawiri ndipo mwa ndondomeko.

Choncho yankho la funso za mmene mano ambiri kusintha munthu, zikhoza kutumikira monga chithunzi 20. onse amene mkaka Zubikov imagwera ana, ndi m'tsogolo m'malo mwa iwo kukula incisors okhazikika, canines ndi zina zotero.

32 - ponseponse?

Funsani funso lanu za mano mmene anthu ambiri mano, mungathe kumva ndithu yankho yotsimikizika: 32. chiwerengerochi wapangidwa manambala zotsatirazi:

• 8 cutters (4 a iwo ili pa nsagwada m'munsi and 4 - pamwamba);
• 4 canines (2 pamwamba ndi chimodzimodzi pansipa);
• 8 premolars (4 pamwamba ndi 4 m'munsimu);
• 12 molar (sikisi mu maxilla ndi nambalayi pansi).

Komabe, anthu ena anayesedwa dzino awo, nthawi zambiri amathawa nanga zimasonyeza kuti pa 28 m'malo mwa 32. Izi ndi chifukwa chakuti molars, kukula kwa zaka 14 amapanga 2 okha mabanja pa nsagwada chapamwamba ndipo m'munsi, motero. M'mawu ena, chiwerengero cha molars anthu athanzi pali chimodzimodzi monga yaing'ono (ie, 8 ma PC.). "Ndiye kodi ndi zina 4?" - Inu kufunsa. chakuti chiwerengero cha mano munthu imatengedwa pamodzi ndi otchedwa mano "nzeru". Childs, ngati fupa lomenyera anthu kukula kwa zaka 17 mpaka 30. Komanso, iwo akhoza konse kuoneka, kupanga chiwerengero 32 si choncho yachibadwa.

Motero nzeru mano kwambiri anthu? Kuyankha funso, mudzatha kuti aziwerenga yosavuta masamu:

32 (a nambala yachibadwa mano) - 28 (okhazikika mano, lomwe kukula kwa zaka 14) = 4 nzeru mano, awiri amene ili pamwamba ndi pansi chomwecho.

Monga tatchulawa pamwamba, ngati fupa mapangidwe sungaphukenso. Chimenechi ndi chifukwa chakuti m'kupita kwa kusanduka zosafunika kwa kutafuna molars pang'onopang'ono mpaka kusanduka. Malinga ndi kafukufuku, ndi lonse la arcs awiri pa m'munsi ndi chapamwamba chibwano, pali anthu theka la dziko lathuli.

Chiyambi m'mbiri ndi kuyang'ana m'tsogolo

Ngati funso mmene anthu ambiri mano zakonzedwa mu kutali kale, zikanakhala adawomba chithunzi chosiyana, osati 32. Ndipotu makolo athu fupa lomenyera M'mimbamo m'kamwa anali ochuluka monga 44, izo ziri chimodzimodzi 12 Zubikov kwambiri. M'kupita kwa nthawi, ndi mbali chapamwamba ndipo nsagwada m'munsi anasowa awiriawiri angapo mano.

Malinga ndi akatswiri mu zaka mazana angapo, anthu amathanso ndi kuchepetsedwa wachiwiri ndi wachitatu molars, komanso incisors lateral. Ichi ndi chifukwa chakuti munthu ano ochuluka amadya okha zofewa ndi mushy chakudya kutafuna amene safuna tatchulawa fupa mapangidwe. Mwa njira, zikhoza kusokoneza chakuti nsagwada za anthu mudzayamba ang'onoang'ono. Kumene, kusintha zamoyo zinachita zikhoza kusintha. Koma mu nkhani iyi ayenera kuperekedwa yolemetsa zina mu dongosolo mano. Kuti tichite zimenezi, munthu ayenera kudya kwambiri nyama kapena coarse chakudya zamasamba.

Kapangidwe ka dzino

Kodi mano ambiri akuluakulu, ife tinapeza pang'ono apamwamba. Koma kulankhula za dongosolo ngati fupa imene anthu kudya tsiku ndi kupereka thupi lanu ndi zipangizo zonse zofunikira, mukhoza sudzatha ndi dongosolo lawo.

Monga mukudziwa, chinthu ichi tichipeza zigawo zitatu zikuluzikulu: korona, khosi ndi mizu.

1. "Korona" amatanthauza mbali yapadziko lapansi ya dzino, amene TACHIMATA ndi enamel (thunthu chovuta mu thupi), ndi kugonjetsedwa ndi fupa lothyoka.

2. khosi ndi gawo la dzino kumizidwa chingamu lapansi.

3. aliyense muzu dzino ili mwachindunji mu nsagwada fupa.

Iwo ayenera kukumbukira kuti chochuluka ankaimira fupa mapangidwe kupanga otchedwa "dentin", ili pansi enamel lapansi. Nkhanizi ndi mwachilungamo cholimba. Komabe, kukana kwawo kwa fupa lothyoka ndi kuwumitsa adakali wolephera korona. Monga amadziwika, dentin kusinthitsa njira angapo munali njira minofu kuchokera ndi zoona, ndiye.

Pankhani dzino M'mimbamo, kumaphatikizapo molekezera mitsempha ndi mitsempha ya magazi. Iwo kupulumutsa zakudya zonse zofunikira kwa zimakhala moyo mapangidwe fupa ndi kuchotsa zinthu zawo zinyalala.

Tikabwerera pang'ono m'mbuyo mizu, tisaiwale kuti zophimbidwa ndi simenti. Zinthu zimenezi ndi zofanana kwambiri fupa yachibadwa. Ndi mbali imeneyi ya dzino Ufumuyo ulusi angapo amene akugwira mu malo (ku gingiva a). Komabe, ena sayenda mapangidwe fupa mpaka pano. Inde, chifukwa ichi kwambiri amachepetsa imabwera kuti adzaswa pa kutafuna chakudya chotafuna.

anthu ochepa mukudziwa, koma dzino anthu onse ali M'mimbamo chimene chimafika ku muzu wa njira, ndipo umatha ndi bowo laling'ono pa nsonga zawo. Monga amadziwika, danga ili dzenje ladzala ndi otchedwa "zamkati". Izo zinali mu nsagwada zake mkatikati mwa mathero mitsempha ndi ziwiya zosiyanasiyana.

Kodi kusamalira mano anu?

Ngati mukufuna kukhala onse 32 a dzino (kapena 28), iwo kukhala mosamala akhaonera. Kuti zimenezi zitheke, akatswiri amalangiza madzulo ndi m'mawa kuyeretsa iwo bwino, ndipo pambuyo iliyonse chakudya onetsetsani kuti muzimutsuka pakamwa. ukhondo adzalola inu kusunga mano anu onse amakalamba. Koma ngati chifukwa chilichonse dzino lanu kuwawa muyenera yomweyo funsani mano anu. Mwa njira, izo tikulimbikitsidwa kukaona osachepera kawiri pa chaka. Chifukwa kupewa caries mano ndi mavuto ena ndi dongosolo fupa kugulitsidwa zochepa chowawa ndi zotsikirako mtengo kusiyana ndi nthawi ndiponso yopweteka kwambiri mankhwala.