Plasma ndi madzi opanda ma cell omwe amapezeka mwa centrifuging magazi onse omwe amachoka mumtsempha wamagazi pambuyo pochiza anticoagulation.Lili ndi fibrinogen (fibrinogen ikhoza kusinthidwa kukhala fibrin ndipo imakhala ndi coagulation effect).Ma ayoni a calcium akawonjezedwa ku plasma, kuyambiranso kumachitika m'madzi a m'magazi, motero plasma ilibe ayoni aulere a calcium.
Ntchito zazikulu za plasma
1. Kadyedwe kachakudya Madzi a m'magazi amakhala ndi zomanga thupi zambiri, zomwe zimagwira ntchito yosunga michere.
2. Pali malo ambiri omangirira a lipophilic omwe amagawidwa pamtunda waukulu wa mapuloteni oyendetsa ntchito, omwe amatha kumangirira kuzinthu zosungunuka za lipid, zomwe zimasungunuka m'madzi komanso zosavuta kunyamula.
3. Ntchito yotsekereza Plasma albumin ndi mchere wake wa sodium zimapanga zotchingira ziwiri, pamodzi ndi ma awiriawiri amchere amchere (makamaka carbonic acid ndi sodium bicarbonate), kuti ateteze chiŵerengero cha acid-base mu plasma ndi kusunga kukhazikika kwa magazi pH.
4. Kupanga kwa colloid osmotic pressure Kukhalapo kwa plasma colloid osmotic pressure ndi chinthu chofunika kwambiri kuti madzi a m'magazi asasunthidwe kunja kwa mitsempha ya magazi, kuti apitirizebe kukhala ndi magazi osasinthasintha.
5. Kutenga nawo mbali pachitetezo cha chitetezo cha mthupi ndikuchita mbali yofunika kwambiri pakukwaniritsa chitetezo cha mthupi, ma antibodies, complement system, etc., amapangidwa ndi plasma globulin.
6. Zambiri za plasma coagulation factor, physiological anticoagulant zinthu ndi zinthu zomwe zimalimbikitsa fibrinolysis zomwe zimagwira ntchito mu coagulation ndi anticoagulation ndi mapuloteni a plasma.
7. Ntchito za kukula kwa minofu ndi kukonza minofu yowonongeka zimatheka ndi kutembenuka kwa albumin kukhala mapuloteni a minofu.
Nthawi yotumiza: Mar-18-2022
