Wheua kikokiko: hanganga āhuatanga me ngā mahi

Wheua kikokiko he rerekē ngā āhuatanga hangarau motuhake o te papanga tautoko tito nei o pūtau wheua, me te takawaenga motuhake. Ko te hanganga ngā te takawaenga muka collagen (wheua kopu), me te rerekē pūhui pararopi. I tua atu, wheua kikokiko he pūnaha lacunary-canalicular arā, o te whatunga o te lacunae mōkitokito me canaliculi me te whakarato pākia intraosseous.

E o toru ngā momo pūtau wheua: osteoclasts, osteoblasts me osteocytes. Osteoclasts - he pūtau nui multinucleated o te take monocytic, te rahi o e kia tae 190 microns. E whai wāhi ēnei pūtau i roto i te resorption (whakangaromanga) o te wheua, me te wheua ngohe. I raro i houtanga whaiaroaro, me te reparative o wheua resorption, kawe reira osteoclasts. Ko tika ti'aturi i runga i te nui mahi Osteoclast o taiaki parathyroid, te nui haere ariā o e faatupu te faaitoitoraa o osteoclast mahi, ārahi ki te whakangaromanga o te wheua.

Osteoblasts - He taitamariki pūtau kupiki wheua Tapamaha puta i roto i te papa mata o te wheua, a karapotia e te microfibrils collagen kikokore. Ko te mahi matua o te osteoblasts ko ki te synthesize wae kopu wahopūtau - wheua collagen me te ture mineralization.

Osteocytes me e whakaritea i roto i te āputa he fusiform mnogootrostchatye pūtau wheua pakeke, whakahaere pākia intraosseous.

E rua ngā momo o te wheua kikokiko: pokepoke,-fibered me te rau. I roto i ngā pakeke, kiko wheua makaka-fibered kei roto i te hononga o te angaanga, me wheua o nga rohe o te tāpiritanga ki tendons, kei amorphous me disordered paihere matotoru o muka collagen. Ko te hanganga o te wheua lamellar ngā papa paraharaha, wheua o te matotoru o 4-15 microns osteocytes, taonga taketake me muka collagen kikokore.

Bone kikokiko, me te tahi atu whēkau o te tinana tangata kitea te ki ngā inflammations, me mate. kia whakaurua tukumate mumura ki reira i roto i te bloodstream, ie. E. Ko te ara hematogenous, i roto i te kaupapa e te manawanui he purulent kanga. Mumura o wheua kikokiko i huaina te tapû-predisposing āhuatanga o e taea e beriberi, whētuki, rohirohi, tautauā, me te pera i runga i. Runga anō i te kaha me te tere o te tapû-wehewehe ma'i, whakapeka, me te subacute momo o te mate.

Ko te hua o te kiko wheua inflammatory roa he blockage iaia me te tohanga rawakore (Thrombosis). Na, tangohia o kai tōtika wheua kikokiko tīmata ki te wahia iho mertvet me, rite te putanga, i reira he necrosis (necrosis) me te whakangaromanga o te kiko wheua. I tua atu, i reira ko te makanga o ngā wāhi wheua necrotic me te mate o te kōrero ki te kiko wheua hauora, i hanga te sequesters pera-ka karanga.

Ko te take matua mō te meinga te tapû-(mumura o wheua kiko) he huakita pyogenic: streptococci, staphylococci me pneumococci, me intestinal, Bacillus taipō me ētahi atu papapūata. He momo o te tapû-whakaaro mate inflammatory pērā i te mate kohi, wheua ekore me wheua.

maimoatanga te tapû- ko ki te whakangaro i te mate ki te paturopi, e kua tīpakohia takitahi i runga i te momo o te huakita rānei. Paturopi pumau e pā ana ki e rua nga marama. Kua tangohia nga ra tuatahi o te raau taero i roto i te puka pire, ki te wha nga ra kahore whakapai ake kitea te, faaterehia te raau e pâmuhia tonu tonu ki te pokapū o te tapû-ranei.