Nhungamiro uye sangano rutsigiro rwemuviri wedu nhengo nhengo
Nhengo dzakabatana dzinobatanidza, dzinotsigira, dzinosunga, uye dzinoparadzanisa nhengo uye mishonga, dzichigadzirisa hurongwa hwekusimbisa masimba uye nhengo dzemuviri, nokuda kwezvakagadzirwa uye zvigadziriswa. Mumuviri unobatana, masero ari mashomanana uye anopararira - haasi muhukama hwepedyo, sezvinoitwa epithelial tissue. Zvizhinji zvakabatana zvinokonzera zvipembenene zviri vascularized (kunze kwekatekete). Zvimwe nzvimbo (extracel cells) munzvimbo dzakabatana dzinoshandiswa sechiziviso chescellular.
Izvozvo zvinoshandiswa, zvino, zvinoumbwa nemasero uye extracellular matrix. Izvozvo zvinowanzoshandiswa ne glycosaminoglycans uye proteoglycans. Izvo zvakasiyana-siyana muhutano hwechikwata chese extracellular chinogadzirisa zvinhu zvezvibatanidza zvisikwa.
Nhengo dzakabatana dzinoumbwa ne:
- Zvinokonzera zvikamu (collagen uye elastin)
- Glycosaminoglycans kana GAGs (kureva maketani ekudzokorora majekiti ekudzivisa maitiro; basa guru nderokutsigira collagen)
- Proteoglycans (GAG zvakabatana neprotein yakakosha)
Kutevedzwa kweConnective Tissue
Nhengo dzakagadzikana dzakagadziriswa dzakarongerwa sechinhu chisina kuchena chisingawanzogadzikana mishonga kana kuti miviri yakawanda isinganzwisisiki.
- Kusununguka kusina kukwana kwechigunwe chemashuga ine masero akawanda uye kusununguka kwehutachiona hwakarongeka mumwero wemasikirini ane mashoma.
- Iyo yakawandisa isina kusimba inogadzirisa mhuka ine ruvara rwakakomberedzwa yakarukwa ye collagen uye mavara elastic in matrix matrix. Dense inogadzirisa mishonga inowanikwa mumakumbo ejoka, muscle fascia, uye dermis ganda reganda.
Specialized connective tissue inosanganisira:
- Dense nguva dzose inogadzirisa maviri (anowanikwa mumatokoni uye ligaments)
- Cartilage (rudzi rwekutsigira hutachiona hunosanganisira chondrocyte masero, collagen fibers, uye flastiki elastic; semiti yakasimba kana kuti inogadzirisa matrix; inosanganisira hyaline cartilage, fibrocartilage, uye elastic cartilage)
- Zvinyorwa zveAdipose (rudzi rwekutsigira hutachiona hunogunzva hunoita, hunoisa mafuta akawanda uye simba; rine mavara mashese uye reticular fibers)
- Hemopoietic kana lymphatic tissue (a fluid connective tishu inobatanidza kushandiswa kwesero reropa; ine leukocytes nemafuta emapulotini ane mvura yakasvibiswa akaumbwa panguva yekuvhara; chikamu chescellular is plasma)
- Ropa (rinosanganisira erythrocytes, leukocytes, thrombocytes; fiber inogadzirisa mapuroteni; extracellular chinhu chinonzi plasma)
- Bhuna (rudzi rwekutsigira hutachiona hunogadzira maosteoblasts kana osteocytes; rine chegogenjeni uye yakasimba kana yakaverengwa)
Pasi pemamiriro ehutano, fiber, proteoglycan, uye GAGs inotungamirirwa uye inodzorwa nekuenzanisa pakati pekushandiswa uye kuora mwoyo. Nhamba yacho inoshandiswa ne cytokines , kukura zvinhu, uye kuora mwoyo MMPs (matrix metalloproteinases). Kana pane kusava nemafungiro, zvirwere zvinogadzirisa zvirwere zvinogona kukura. Somuenzaniso, pane kuora kwematare mumamiriro ezvinhu akadai seasteoarthritis , rheumatoid arthritis , uye osteoporosis . Kuwedzerwa kwematare emagetsi kunogona kutungamirira kune scleroderma kana interstitial pulmonary fibrosis.
Kune zvirwere zvinopfuura 200 nemamiriro ezvinhu anokanganisa maviri.
Zvimwe zvirwere zvinokonzerwa nehutachiona zvinokonzerwa nehutachiona, kukuvadzwa, kana nekuda kwekusaremara kwemafuro. Chinokonzera dzimwe zvirwere zvinogadzirisa zvirwere zvinoramba zvisingazivikanwi.
> Sources:
> Connective Tissue. Kutevedzwa kweConnective Tissue. The Histology Guide. University of Leeds.
> Connective Tissues: Matrix Kuumbwa uye Kukwana Kwaro Kurapa Kwepanyama. Therapy Therapy. Culav EM et al. March 1999.
> Connective Tissue Disorders. MedlinePlus.