Uxinzelelo oncotic

Akuboni uxinzelelo oncotic (it has osmotic efanayo) - izakhi inganyityilikiswa izinto ukusekwa igazi plasma yegazi. Ngenxa yokunqongophala iiproteni umzimba uhle, nto leyo enokukhokelela ekubeni ngenxa beqokelela nokudumba ulwelo iza kuvela. Oku kubangelwa yinto yokuba emithanjeni inwebu iyakhanya kunye semipermeable. Ba kakuhle kwaye ngokukhululekileyo Kwathi amanzi, ngoxa ion kunye molekyuli kwezinto ezahlukeneyo - mbi.

uxinzelelo oqhelekileyo oncotic imalunga 7.5 ATM. (5700 mm HG okanye 762 kPa). Umsebenzi kuyahluka kwingingqi plasma 290 mOsm / l.

Nangona kunjalo, i osmotic wegazi ulinganiswa hayi ubungakanani molekyuli zichithakala nje, njengokuba ingqalelo. Uninzi ion plasma (malunga 99,5%) ezi ion ezingaphiliyo, uyazikhomba elandelwayo exhomekeke uxinzelelo oncotic. Yengcinezelo iiproteni plasma yinto encinane kuphela zonke 0.03-0.04 ATM. (25-30 mm HG). Kodwa kubalulekile ukukhumbula ukuba uxinzelelo ezwi iiproteni lidlala indima ebaluleke kakhulu nonikezelo lwamanzi phakathi plasma kunye kwizihlunu eziphambili.

Le yinxalenye yenkqubo kwaye cinga nokuchongwa xi oncotic. inxaxheba kwakhe nonikezelo lwamanzi iboniswe kukuba iindonga emithanjeni ikakhulu ivaleke ukuba njengeprotini. Iiproteni Embi fluid ezincinane kakhulu, ngoko ithambeka yabo xi ifunyenwe kwi omabini amacala capillary.

Ngenxa eliphezulu oncotic xi ulwelo kwisithuba intercellular a angakhuli, kunye ujikeleza.

Kuthintelo xi oncotic ekucetyiswa unyango yokukhulelwa, nto leyo mikhulu-kangangokuba kufikelelwe kwisiphumo ayisayi kuthatha ixesha elide. Kunye neeproteni igazi ekunqandeni eqhelekileyo bunjani, avumele ukunciphisa ingozi yesifo sentliziyo.

uxinzelelo lwegazi Oncotic lidla ugcinwe kwinqanaba rhoqo. Ngo wayo ummiselo neurohumoral inxaxheba amalungu excretory ezifana kwamadlala xhopho , kunye nezintso. Nciphisa okanye ukunyusa uxinzelelo oncotic waqonda kwimiphetho iindonga isitya kunye kwisabelo esisezantsi (le ngxenye) apho hormone antidiuretic uyakhululwa ochaphazela inkqubo kukufakwa kwi imiphantsi zezintso. umsebenzi wayo kukulawula inkqubo ekwakhekeni umchamo. Uzinzo xi osmotic ukunika ADN, aldosterone, parathormone, urenichesky hormone intliziyo.

Xa reflex kwenzeka ekwabeni amalungu ukutshintsha imisebenzi okanye kubangele ukulibaziseka ngokugqithisileyo, okanye ilahleko ngesiquphe kolwelo netyuwa emzimbeni. Kule nkqubo, owokuqala indima ephezulu iya iiproteni (uxinzelelo oncotic) ezinako ukubopha kunye nokukhululwa ion. Ngenxa imisebenzi excreting amalungu (izintso kunye kwamadlala ukubila), iimveliso pathways leyo rhoqo kwasekwa emzimbeni, abaninzi kubo Awunayo nefuthe elibi xi osmotic.

Ukuphazamiseka inqanaba xi oncotic zihlangene ukungalingani iyonke protein albumins plasma kunye globulin, anions, iyatshi-, isodiyam, potassium, calcium kunye namanye amacandelo. Oku kungabangelwa iimeko ezahlukeneyo zophendlo lwezifo kunye nezifo (ukunxila, ukutsha, ixesha post-operative, ukothuka, legazi, zizifo ezahlukahlukeneyo, kwaye like). Kwiimeko ezinjalo, khangela uxinzelelo oncotic kubaluleke kakhulu rhoqo. Unyango kuqala ngqo ekususeni sifo engundoqo kunye nokubuyiselwa intsalela neetyuwa kwi plasma yegazi. Noko ke, ngaphambi kokuba ubaphatha uxinzelelo, ingakumbi oncotic, qiniseka ukuba udibane nogqirha wakho. Musa self-medicate!