Osteon - he wae hanganga o te wheua: hanganga me te mahi

Ko te tinana tangata, ko te pā ana ki 206 wheua, engari e mohio ana torutoru iwi ratou hanganga me matau te aha e na kaha ratou. Ko te tūranga matua i roto i tenei ko te osteon. Tenei kōwae hanganga i nei hanga nga wheua o nga wahi, rara, pekehoe, etc. He ingoa tetahi -. Pūnaha Haversian.

Ko te hanganga o te wheua

Anake no te mea o te mahi ngā o te kōhiwi, me uaua o to tatou tinana, e taea ki te neke matou, a ko to ratou mahi matua tenei. E, o te akoranga, me te atu - toto, utu o ngā huānga wahi, zapasatelnaya (rāhui ngako). Arā i te hanganga e whai ake nei - pūtau wheua motuhake, me te kopu wahopūtau, te waho taupoki (kiriuhi wheua) me kei roto i te roto o te hinu wheua wheua.

Kei Tetahi wheua o rua wāhanga - te taonga kiato, me te tu'ūlutui. Kei te tuatahi i runga i te taha, ko te tuarua - i roto i te pokapū, me te ngā o kurupae osseous, kahore whakaritea matapōkeretia, a i roto i te hanganga ture tino ki te kaha waho i runga i te whenua i te pae ngā.

Ko te hanganga o nga wheua

Ko te huinga o waro (30-40%) me te pararopi (60-70%) o te matū hei āhuatanga o te hanganga kōhiwi. Na roto i te matū pararopi ngā tai o te hanganga matū rerekē: Phosphate, konupūmā pākawa waro, konupora pūkawa me ētahi atu. Kua rewa katoa o ratou i roto i te waikawa, i muri i tona rongo ki te wheua mahue matū organic anake, me te wheua i roto i te ahua me te ongo'i rite te hautai.

I roto i taea te taratahi te matū organic ngako mukoproteidov, glycogen me kaka collagen (māngai ossein, osseomukoidom, elastin). Ki te tahuna te wheua te, ka noho i te āhua o taua mea, engari ka riro te reira pakarukaru, me te hu'ahu'a ngāwari ka aki.

Ko reira te huinga o ngā matū o takenga rerekē hanga pakeke te wheua, roa, engari hangore.

momo o wheua

E ai ki te rerekētanga i roto i te hanganga e wehea ki:

• Tubular. He roa, me te poto. Kei a ia ko diaphysis rua me epiphysis, āhua tapatoru, ranei porotakaroa;
• Tu'ūlutui - tito kikokiko te nuinga cancellous karapotia e totoka;
• flat. tohu ratou e rua papa paraharaha, flat i waenganui i nei noho ko te wheua cancellous, hei tauira, matatahi wheua;
• whakauru. Wheua, arā, o te maha ngā wāhanga o te āhua matatini. He ngā āhua me te mahi mahi ratou. Hei tauira, ngā te pūwaha rei o toru ngā wāhanga - te tinana me te tukanga pewa.

Ko te hanganga pūtau o te wheua

Ka whakaaro te kiko wheua i te taumata pūtau, i reira e toru ngā matua o ngā pūtau e rerekē i roto i te hanganga me te mahi o ratou mahi:

1. Osteoblasts - taitamariki pūtau nui e te hunga mesenchymal i takenga. āhua porotakaroa, ko eccentrically te matua. He he konga ia haere mai ki te whakapā ki te osteoblasts tata ia pūtau. Ko te mahi matua - ki te synthesize kopu wahopūtau, me he kawenga mo te mineralization.
2. Osteocytes - Ko te wā i muri i roto i te whanaketanga o te osteoblast pūtau wheua, kua kitea e ratou i roto i te wheua, kua mutu nei ki te whakawhanake i te tinana pūtau iti, he mea whakarite ki osteoblasts, a he nui te maha o ngā tukanga, me kia rerekē noa i roto i te wheua kotahi. Kei te iti hoki te pata i roto i te rahi me te riro atu mātotoru. Ua immured whare herehere i roto i te taonga intercellular mineralized (āputa).
3. Osteoclasts - rahi pūtau nui e taea tae atu atu i te 80 microns. Otaota e kore tetahi, engari e rave rahi, mai e hanga e ratou o te maha tauta tahi macrophages. Mai Ko te osteoclast i te nekenga tamau, e te huri tonu tona āhua. I runga i te wahi o te wheua e hiahia ki te kia whakangaromia, ki te pūtau i reira e maha tukanga e whai e "veteki" te wheua, tango atu i reira tai katoa, me te whakangaro i te kopu.

Enei e toru ngā momo o ngā pūtau, tahi ki te rauemi, me te osseinovymi muka amorphous tikanga i roto i te wāhi noa, i roto i te tikanga ki te hanga i te rihi, i tahuri, hanga osteons, me pereti gusset whānui.

hanganga hanganga o wheua

hanga Diaphysis te ake o ngā waeine e rua hanganga: pūnaha Haversian osteon ranei, - he wahi matua - ko te pereti gusset. Ko te tino uaua hanganga Osteon. E hurihia paraharaha wheua ki ipurau o diameters rerekē. E ohanga e ēnei ipurau i roto i tetahi ki tetahi, a ka haere te pokapū he awa Haversian pera-ka karanga. I roto i tenei hongere whakamatauria raru me oko toto.

Osteon - e kore te mea he teka wae hanganga motuhake tenei, toutou ia anastomoses i waenganui i ētahi atu waeine, me te te kiriuhi wheua me oko wheua wheua. I muri i te katoa, te supply toto o osteons mea pūtake hoki o te kupenga reretoto o te kiriuhi wheua, a ka haere ki roto ki te oko wheua wheua. Whakarara ki oko toto me mutunga karere e.

Kei tetahi osteon, photo tohu, i roto i te wheua tubular whakarara ki te taha roa, me te hautai - hāngai ki te kaha o te kōpeketanga me te mānukanuka.

hangaia ia wheua te i to ratou maha takitahi o taua waeine, rite te osteon, kaiwhakatika koiora he hanganga taua kia te kawenga i runga i ia o ratou ona ake. Pūkaka te whakamamaetia kawenga kōpeketanga nui i roto i haere, te maha o ngā pūnaha Haversian ko reira 1.8 pc. ia mirimita tapawha. Ano, 11% - ko te rahi o nga awa Haversian.

E wehea tonu Osteons e paraharaha takawaenga (kīia hoki ki rite intercalary). Ehara i te mea tetahi mea, engari te wheua osteon i pakaru, kua waiho taea hoki tetahi take ranei tetahi. Ko e mo'oni, ko tonu ko i te tukanga o te whakangaromanga, me te hanga pūnaha Haversian hou wheua.

mahi osteon

rārangi Osteon nga āhuatanga:

• wae hanga taketake o te wheua;
• E horo'a te reira kaha;
• tiaki raru, me te mau ana te toto oko.

riro te reira i mārama e te osteon - e kore i taea e te hanganga e rave i te wāhi nui i roto i to tatou kaupapa, i waho te kōhiwi te whakatutuki i ona whakaaro e tūmanakohia ana - ki te tautoko i nga okana me te kopa o te tinana i roto i te wāhi.