Kodi mafupa ambiri ali mu umunthu?

Ndithudi, ambiri munayamba mwaganizapo mafupa angati anthu. Ndi chifukwa kuchuluka kwa mafupa a anthu amachita m'malo zovuta chala mpheto manja apangidwe ndi anaweramuka thupi lake, ndipo kuti mafupa kuteteza ziwalo mwangozi kunja. wakhanda mafupa tichipeza mafupa oposa mazana atatu. Komabe, ngati munthu akukula, ena a mafupa lama fuyusi pamodzi, kotero mu thupi la nambala wamkulu mafupa ndi za 206-208. Zachilendo mmene zingamvekere, koma kunena mmene fupa munthu sizingatheke.

Pamene munthu wabadwa, mafupa ake zofewa Komabe, kukhala firmer ndipo ena a iwo kukula pamodzi pa nthawi. Mwachitsanzo, mwana pa chigaza akuitanidwira fontanelles - malo pomwe pali minofu connective, amene kenako m'malo ndi minofu fupa. Kenako malo fontanelle fupa kukula pamodzi ndi malo amakhala wochenjera. Mmene fupa munthu ali, magwero osiyanasiyana akusonyeza mfundo zosiyanasiyana, koma tingatsatire kuti awo zana oposa awiri.

mafupa a anthu pa mlingo wa kuuma nthawi zina poyerekeza ndi zitsulo, koma iwo savuta kwambiri chifukwa akuphatikizapo porous. Fupa minofu anapanga ku maselo intercellular mankhwala wolemera zigawo mchere. Kunja lililonse fupa aphimbidwa ndi periosteum, amene nawonso, ndi chinamulowerera ndi maboti ambiri magazi kudyetsa fupa. Kapangidwe ka mafupa a anthu amenewa kuti ndi chisoni kotheratu, mitsempha mathero zilipo okha periosteum lapansi. Mu ubwana, mwayi nkhani fupa organic Ufumuyo mafupa a elasticity ndi kulimba. Mu anthu okalamba, makamaka achikulire, kuchuluka kwa zinthu zochita kupanga amachititsa mafupa Chimaona.

Mafupa, komanso mawonekedwe awo ndi osiyana kwambiri. Mu thupi la munthu pali lathyathyathya fupa, tubular kapena wosanganiza, komanso mafupa pneumatic. Ndi mafupa tubular alandirika yaitali (femur ndi humerus, tibia fupa la mkono) ndi lalifupi (metatarsal mafupa, pastern, phalanges). Thandizo la fupa, komanso mawonekedwe awo mwachindunji amadalira njira za ubwenzi thereto minofu minofu. Pankhaniyi minofu kuti chikugwirizana ndi fupa minofu mwa tendons anapanga lokwera protuberance kapena mafuta pa mphambano ya. Ngati minofu amapita mwachindunji periosteum, mu situ anapanga poyambira kugwirizana.

Mkati fupa, mu maselo wa chinthu chofewa ngati siponji ndipo M'mimbamo medullary, mafupa ili. Pa ana akhanda, mafupa onse a mafupa muli wofiira mafupa, amene ali zoteteza ndi hematopoietic ntchito. Ndi maukonde wapadera ulusi reticular ndi maselo. Akuluakulu, wofiira mafuta ali yekha selo chofewa ngati siponji mafupa mosabisa. Mu mafupa cavities mafupa yaitali chikasu mafuta a m'mafupa, imene ikuimiridwa ndi alibe wa reticular stroma ndi inclusions mafuta.

Fupa zothinanitsa mu thupi la femur. Ndi povuta kuti ndisiye koma wovulala mafupa kungayambitse mavuto aakulu kwambiri. Pafupi mtsempha wamagazi ndi femur ili, ngati kuwonongeka umene munthu akhoza kutaya magazi ambiri.

Kodi mafupa ambiri mwa anthu, nkuti, ndipotu kovuta. anthu osiyana ndi milingo yosiyanasiyana ya fupa anati. Mwachitsanzo, pali ena nthiti owonjezera, ndi wina kumeneko, ndi chala chimodzi. Za munthu mmodzi mwa makumi awiri ali m'mphepete anawonjezera kuti ndi chidwi - pamaso pa muyeso mwamuna nthiti ndi ambiri kuposa kugonana chilungamo. Anthu ena amakhala ndi mafupa angapo zina ili mu Chipilala phazi.