Umthunzi wengubo yegugu uguquka njani?

Igoba lomuntu akuyona nje into ebaluleke kakhulu yokubamba amathambo, kodwa kunye neyona nto ibonakala ngokugqithiseleyo. Ngoko ke, zonke iinguqu zayo azikwazi ukungazi. Amanqanaba okutshintshwa okunjalo afanelekileyo kwaye umntu ngamnye unomntu, kodwa kukho imigaqo jikelele ngokuxhomekeke kwiminyaka.

Kulo lonke ubomi, ingqayi yomntu iguquka kakhulu. Oku kubaluleke kakhulu ngokubonakala kwayo. Ngokuqhelekileyo, kukho ixesha elide elide lokuguqulwa. Masiqwalasele ngamnye ngamnye ngeenkcukacha ezingakumbi.

Ixesha lokuqala

Eli xesha lixesha elifanelekileyo kakhulu lokukhula kwentloko kwaye lihlala iminyaka eyisixhenxe yokuqala yobomi bomntu. Ukususela ngexesha lokuzalwa kunye neenyanga ezilisithandathu, umthamo wengqondo yengqayi iphindwe kabini. Ngeminyaka emibili, umthamo wayo ulandelelwe kathathu, kwaye uneminyaka engamahlanu yintathu yesine umthamo wekrele lonke. Olu lwalamano luhlala ixesha lobomi. Kulo thuba apho i-cranial fossa iyancipha kakhulu, kwaye inxalenye ye-occipital yentloko iqala ukukhupha. Ukongezelela, izicubu zesikhumba se-craneal vault kunye nezicubu zomzimba zethambo le-occipital ziguqulwa kwaye zinyamalalala. Iyokuqala (isigaba sokuqala) sokwakhiwa kwamathambo esithambo sekhanda senzeka. Eli xesha libaluleke kakhulu, kuba umgca wekhrele awuhlolwanga nje ukuba ugxininise amathambo entloko omnye komnye, kodwa, ngokubaluleke ngakumbi, yindawo yokukhula kwabo ububanzi.

Ukwahlula kwee-sega zekhrele

I-Sutures ihlukaniswe ngokwemilo yazo ibe yile ilandelayo:

• Zixutywe;
• Scaly;
• Flat.

Umthunzi oqingqiweyo wekhona unqunywe ngamacangca amabini, xa umntu ekhupha, kunye nakwezinye - iincwadana ezizalisa ezi ziqulatho. Olu hlobo lwenxowankulu luhlala luhlala phambili. Xa kuphakanyiswe amabini amabini amathambo afuphiweyo, i-scaly seam yekhayi yenziwe. Zonke iifom zizaliswe zizicubu ezinxibelelwano, zinika amandla kunye nokuhamba kwiimpawu ezinjalo. Yaye udidi lwesithathu lwamajoyini luyilo. Umthungo weplate we-gawuni utyunjwa ngoqhagamshelwano lwe-wavy okanye i-flat offaces. Ngokuncedo lwalo hlobo lwamajoyina, amathambo e-skull ebusweni ahlangene nomnye, kunye negama lawo lixhomekeke kwi-formation bone.

Ixesha lesibini leenguqulelo

Kule minyaka emihlanu ezayo, amathambo entloko akhula kakhulu. Kukho utshintsho obonakalayo ngokubonakalayo ekukhuleni nasekubunjweni kwintloko ebusweni bekrele (iziseko zamehlo, intambo yomsi kunye nomhlathi ophezulu). Valiwe kodwa kwixesha le- ferns eliza kutshatyalaliswa ngokupheleleyo, kwaye i-seams zizaliswe ngogunyaziso lwetnu.

Kwesithathu

Eli xesha lihambelana nokukhula komzimba komntu kwaye ihlala iminyaka elishumi (ukususela kwiminyaka eyi-14 ukuya ku-15 ukuya kwiminyaka eyi-25). Kukho ukukhula kokugqibela kwekhayi kunye ne- axial skeleton. Ngeli xesha lobomi (ngokuchaseneyo namabini angaphambili), kukho ukukhula okunamandla kwe-skull ebusweni, kunokuba i-crane yecerebral. Umthunga wechakha, njengokwakheka kwe-anatomiki, uhlala womelele, kwaye ixesha lokuqala, lihlala lide lide lide liphele. Isiseko sekhayi sanda kuzo zonke iinkalo, kungekhona nje ububanzi. Iiforrows, i-protrusions, i-knolls kunye nezono ze-airborne ziyakhiwa.

Ixesha lesine

Ukususela kwiminyaka eyi-25 ukuya kwe-45, akukho tshintsho ekuphuhlisweni kwamathambo entloko. Ngeli thuba, umsila wekhayi unqabisa. Kwiimeko ezinqabileyo kakhulu, i-sutures inokuqhubeka nokuphila.

Isihlanu

Eli nqanaba lihlala kwixesha lokungena kwe-sutures kunye nokuguga kakhulu. Kukho utshintsho oluthile lwama-anatomical, kodwa lulolu hlobo. Ukutshintsha kweso skull ubuso begazi ngenxa yokulahlekelwa kwamazinyo kunye ne-atrophy yeenkqubo ze- alveolar. Ngokweminyaka yobudala, ubukhulu bezinto ezinobuncwane kunye ne-compact plate liyancipha, kwaye i-gace iyaba lula. Ngenxa yokuhlaziywa kwamathambo esithambo kunye nokutshintsha kwindlela yokuveliswa kwamaminerali, amathambo abe yintsholongwane, adibanise kwaye aphule.

Isiphelo

Igoyi lomuntu yinto ebizwa ngokuba yi-skeleton yentloko. Isakhiwo saloo-anatomiki sibaluleke kakhulu ekukhuseleni ubuchopho kunye nezitho zengqondo. Ubumba isimo sethu (ubuso).

Umthunga wekakayi, ube yunithi yokusebenza, udlala indima ebalulekileyo ekudibaneni amathambo ekhanda kunye nomnye. Ebantwaneni, iiplanga zine-elasticity ephezulu, kwaye zize ziphele.

Isigaba sokuphuhliswa kwamathambo enkkull sinomlinganiselo wobudala. Ngaloo ndlela, ixesha lokuzalwa, xa i-fontanelles ihlala (isigaba sekhanda), kunye nokuhluthwa komntu kudlula kwisigaba sebala, kwaye emva koko kungena emnzini wethambo.

Ngexesha lokuzalwa aligqibeli ukwakheka kwekhayi ngokwayo. Kukho amanyathelo amahlanu ophuhliso lwayo. Ngaloo ndlela, ukususela ngexesha lokuzalwa kwisikolo (iminyaka engama-6 ukuya ku-7), i-gace ikhula ngokuphakamileyo kakhulu, kwiminyaka emihlanu ukuya kweyisixhenxe ezayo ixesha lobudlelwane obusondeleyo, kunye nokuqala kobuntwaba ukuya kwi-25 ubudala, kukho utshintsho ngokuyinxalenye ebusweni bayo.