Bone dinama tse nyenyane tse: makgetheng mehaho le mesebetsi

Bone dinama tse nyenyane tse e fapaneng e itseng ho phetha molao feela thepa ya lesela ho tšehetsa e entsoe ka lisele tse lesapo le khethehileng lipakeng. Sebopeho se akarelletsa e lipakeng collagen faeba (lesapo popeho) le metsoako e fapaneng inorganic. Ho feta moo, lesapo dinama tse nyenyane tse nang le lacunary-canalicular tsamaiso e khopo e entsoeng ka khokahano ea lacunae nyenyane le canaliculi le ho fana ka intraosseous metabolism.

lisele tse Bone ke tsa mefuta e meraro: osteoclasts, osteoblasts le osteocytes. Osteoclasts - e khōlō multinucleated lisele tse se hlahang ho yona monocytic, boholo ba eo a ka finyella 190 microns. lisele tse tsena ho ameha ka resorption (itseng timetsong) ya bone bone le lefufuru. Tlas'a nchafatso fisioloji le reparative ea lesapo resorption, osteoclasts jara. Osteoclast mosebetsi ke ka ho toba itšetlehile ka ka tjhelete e ya hormona parathyroid, eketseha tswakana ya eo akarelletsa le Tshebediso ya ya osteoclast mosebetsi, ea isang ho ho timetsoa ha lesapo la.

Osteoblasts - le monyenyane polygonal lisele tse sekotwaneng lesapo etsahalang le dikarolo le holim 'a bone bone le pota-potiloe ke a masesaane collagen microfibrils. Mosebetsi o ka sehloohong oa osteoblasts ho synthesize kantle ho sele popeho dikarolo - lesapo collagen le laolang mineralization.

Osteocytes le ba o ile a lokisetsa ka likheo ba fusiform mnogootrostchatye lisele tse hōlileng ka ho feletseng pele lesapong, laolang metabolism intraosseous.

Ho na le mefuta e 'meli ea lesapo dinama tse nyenyane tse: mahoashe-fibered le lekhasi ya. Ho batho ba baholo, mahoashe-fibered lesapo dinama tse nyenyane tse sebakeng manonyeletso ea lehata le masapo ea ka libaka tsa kamano ho tendons, e na le amorphous le disordered mangata teteaneng oa likhoele collagen. Sebopeho sa lamellar lesapo e akarelletsa lesapo lipoleiti tsa botenya ba 4-15 microns osteocytes, ntho mantlha le tšesaane collagen likhoele.

Bone dinama tse nyenyane tse, hammoho le litho tse ling tsa 'mele oa motho e pepesehetse inflammations tse fapa-fapaneng,' me mafu a. Likokoana-hloko ho ruruha ka hlahiswa ka ho sona ka maling, ke hore,. E. The tsela hematogenous, ka ketsahalo eo mokuli o purulent leifo. Ho ruruha ha lesapo dinama tse nyenyane tse bitsoang osteomyelitis predisposing lintlha tsa e leng e ka ba beriberi, ho sithabela, mokhathala, tsidifatso le joalo-joalo. Ho itšetlehile ka matla a maholo le lebelo la osteomyelitis khetholla liforomo foleng, a hlobaetsang le subacute lefu lena.

Le ka lebaka la nako e telele a hlabang dinama tse nyenyane tse lesapo ke vascular blockage le ba futsanehileng e ajoa ka likopi (thrombosis). Ho joalo, tingoa dinama tse nyenyane tse phepo e ntle lesapo qala ho heletsa mertvet me, ha e lebaka leo, ho na le necrosis (necrosis) le timetso ea dinama tse nyenyane tse masapo. Ho phaella moo, ho na le ke ho hana libakeng necrotic lesapo le tahlehelo ea mekhoa ea puisano e ka bophelo bo botle lesapo dinama tse nyenyane tse, thehoa ho thoeng sequesters.

Mabaka a ka sehloohong la ho etsa hore osteomyelitis (ho ruruha ha lesapo dinama tse nyenyane tse) di pyogenic libaktheria: streptococci, staphylococci le pneumococci, 'me mala, feberu ea mala bacillus le likokoana-hloko tse ling. A mefuta e fapaneng ya osteomyelitis nkoa mafu a hlabang a kang lefuba, lesapo senokoane le masapo.

Osteomyelitis kalafo ke ho timetsa tshwaetso le lithibela-mafu, tse kgethile bomong ho itšetlehile ka mofuta oa libaktheria. Lithibela-mafu le teng ka likhoeli tse peli. Matsatsing a pele a ea lithethefatsi ba isoa foromo pilisi, haeba matsatsi a mane ha ho ntlafatso e hlokomela, moriana o laolwa entoe kapa ho tsoela pele kena ka ho toba e le setsi sa osteomyelitis.