Kashi nama: tsarin fasali da kuma ayyuka

Kashi nama ne daban-daban musamman na inji Properties na goyon bayan masana'anta wanda aka hada da kashi Kwayoyin da musamman tsaka-tsaki. A tsarin ya hada da wani tsaka-tsaki collagen fiber (kashi matrix) da kuma daban-daban inorganic mahadi. Bugu da ƙari kuma, kashi nama yana lacunary-canalicular tsarin kunshi wani cibiyar sadarwa na microscopic lacunae da canaliculi da kuma samar da intraosseous metabolism.

Kashi Kwayoyin suna da iri uku: osteoclasts, osteoblasts da osteocytes. Osteoclasts - a manyan multinucleated sel monocytic asalin, girman wanda zai iya isa 190 microns. Wadannan Kwayoyin suna da hannu a cikin resorption (halaka) daga kashi da guringuntsi. Karkashin physiological da reparative farfadowa daga kashi resorption, osteoclasts gudanar da shi. Osteoclast aiki ne kai tsaye dogara a kan adadin na parathyroid hormone, da ƙara kira na wanda entails da kunnawa da osteoclast aiki, abu don halakar da kashi.

Osteoblasts - matasa ne polygonal shigen sukari kashi Kwayoyin faruwa a cikin farfajiya yadudduka da kashi da kuma kewaye da bakin ciki collagen microfibrils. Babban aiki na osteoblasts ne haduwa extracellular matrix aka gyara - kashi collagen da gudãnar mineralization.

Osteocytes da aka shirya a cikin gibba ne fusiform mnogootrostchatye balagagge kashi Kwayoyin gudãnar metabolism intraosseous.

Akwai iri biyu kashi nama: m-fibered da ganye. A manya, m-fibered kashi nama dake a cikin gidajen abinci na kwanyar da ƙashi na daga sãsannin abin da aka makala don tendons, ya ƙunshi amorphous kuma tarwatsatstsen m (collagen) zaruruwa. A abun da ke ciki na lamellar kashi ya hada da kashi faranti na wani kauri daga 4-15 microns osteocytes, asali abu da kuma na bakin ciki collagen zaruruwa.

Kashi nama, kazalika da sauran gabobin jikin mutum da aka fallasa su daban-daban inflammations, da kuma cututtuka. Pathogens kumburi iya gabatar a cikin shi ta hanyar da jini, watau. E. The hematogenous hanya, a cikin taron da cewa haƙuri yana surkin jini hearth. Kumburi kashi nama kira osteomyelitis predisposing dalilai na wanda za a beriberi, rauni, gajiya, sanyaya da sauransu. Dangane da tsanani da kuma gudun osteomyelitis rarrabe kullum, m kuma subacute siffofin da cutar.

A sakamakon wani dogon kumburi kashi nama ne jijiyoyin bugun gini blockage da matalauta zagayawa (thrombosis). Saboda haka, hana abinci kashi nama fara karya saukar mertvet kuma, kamar yadda wani sakamako, akwai necrosis (necrosis) da kuma halakar da kashi nama. Bugu da kari, akwai wata kin amincewa da necrotic kashi yankunan da asarar sadarwar da lafiya kashi nama, kafa da ake kira sequesters.

Cikin manyan dalilan da haddasa osteomyelitis (kumburi kashi nama) ne pyogenic kwayoyin: streptococci, staphylococci da pneumococci, kuma hanji, typhoid bacillus da sauran microbes. A iri-iri na osteomyelitis dauke kumburi cututtuka kamar tarin fuka, kashi felon da kuma kasusuwa.

Osteomyelitis magani ne don halakar da kamuwa da cuta da maganin rigakafi, wanda aka zaba akayi daban-daban dangane da irin kwayoyin cuta. Maganin rigakafi yana game da watanni biyu. A farkon zamanin kwayoyi da ake dauka a kwaya tsari, idan kwanaki hudu babu wani ci aka lura, da miyagun ƙwayoyi ne gudanar intravenously ko ci gaba mike a cikin tsakiyar osteomyelitis.