Qhov txawv ntawm Ntshav thiab Plasma

2024 Tus sau: Alex Aldridge | [email protected]. Kawg hloov kho: 2023-12-17 13:40

Ntshav vs Plasma

Nyob hauv ntau cov kab mob ntau yam, cov pa oxygen tau txais los ntawm txoj kev ua pa thiab cov as-ham ua tiav los ntawm lub plab zom mov yog faib los ntawm cov hlab ntsha. Lub circulatory system tseem yog lub luag haujlwm rau tshem tawm cov pa roj carbon dioxide thiab lwm yam khoom pov tseg hauv lub cev hlwb. Tag nrho cov kab mob multicellular muaj lub plawv uas tso dej tshwj xeeb thoob plaws hauv lub cev. Hauv cov vertebrates, thawj cov kua dej hauv lub cev yog cov ntshav, uas feem ntau ua rau hauv cov hlab ntsha kaw. Cov ntshav tag nrho yog tsim los ntawm ob qhov loj; uas yog, plasma feem thiab cellular feem. Cov ntshav plasma feem ntau yog ua los ntawm cov dej thiab cov plasma proteins thaum lub cellular feem yog tsim los ntawm cov qe ntshav dawb thiab ntshav liab, thiab platelets.

ntshav

Ntshav yog suav tias yog cov ntaub so ntswg sib txuas, uas yog tsim los ntawm cov kua dej matrix hu ua plasma thiab ntau hom hlwb thiab lwm cov khoom tsim uas ncig hauv cov ntshav. Feem ntau ib tug poj niam laus muaj li ntawm 4 mus rau 5 litres cov ntshav thaum ib tug txiv neej laus muaj me ntsis ntau dua li cov poj niam. Feem ntau, cov ntshav muaj li ntawm 6 mus rau 8 feem pua ntawm lub cev qhov hnyav ntawm ib tus neeg.

Ntshav thauj cov pa oxygen, khoom noj khoom haus, thiab lwm yam ntaub ntawv mus rau lub hlwb thiab tshem tawm cov pa roj carbon dioxide thiab lwm yam khoom pov tseg ntawm lub hlwb. Nws yog ib qho tseem ceeb heev kom tswj tau cov homeostasis hauv cov kab mob. Cellular feem ntawm cov ntshav yog tsim los ntawm cov qe ntshav dawb xws li neutrophils, lymphocytes, monocytes (macrophages), eosinophils, thiab basophils, platelets thiab cov qe ntshav liab. Cov qe ntshav liab yog hom cell loj uas faib cov pa oxygen thoob plaws hauv lub cev. Tsis tas li ntawd, cov qe ntshav liab kuj yog lub luag haujlwm nqa cov pa roj carbon dioxide ua cov khoom pov tseg. Cov qe ntshav dawb yog qhov tseem ceeb rau kev tiv thaiv kab mob thiab kev tiv thaiv kev ua haujlwm thaum platelets tseem ceeb hauv cov txheej txheem txhaws.

Plasma

Plasma yog suav tias yog cov kua dej ntawm tag nrho cov ntshav. Dej yog qhov tseem ceeb ntawm cov plasma; nws yog kwv yees li 90%. Qhov seem 10% ntawm tag nrho cov ntshav ntshav muaj cov as-ham, pov tseg, thiab cov tshuaj hormones, ions (Na⁺, Cl^–, HCO_{. 3}^–, Ca²⁺, Mg²⁺, Cu 2+^{, K}+ ^{thiab Zn}2+^{) thiab cov proteins (albumin, globulin, fibrinogen). Plasma proteins feem ntau yog lub luag haujlwm rau kev tiv thaiv, txhaws, thauj lipid thiab kev txiav txim siab ntawm cov ntshav cov kua dej. Cov dej hauv plasma ua raws li cov kuab tshuaj thiab pab thauj cov cellular thiab lwm yam khoom. Cov zaub mov zoo li qabzib, amino acids, thiab cov vitamins hauv plasma yog siv los ntawm cov hlwb hauv lub cev. Cov tshuaj hormones endocrine kuj tau nqa mus rau lawv lub hom phiaj ntawm tes los ntawm kev sib cais hauv cov ntshav plasma.}

Dab tsi yog qhov txawv ntawm Ntshav thiab Plasma?

• Plasma yog ib feem ntawm cov ntshav. Nws pab kwv yees li 50% mus rau 60% ua kom tag nrho cov ntshav.

• Lub plasma yog qhov nruab nrab thauj cov qe ntshav thiab lwm yam khoom.

• Cov ntshav tau hloov pauv rau cov neeg mob mob ntshav qab zib mob ntshav qab zib, cov neeg mob kws khomob, cov neeg mob raug mob thiab cov neeg uas tab tom phais plawv thaum tsuas yog cov ntshav hloov pauv rau cov neeg mob uas muaj kab mob hemophiliac.

• Lub plasma yog siv los tsim cov kev kho cawm txoj sia rau cov neeg uas tsis tshua muaj, mob ntev thiab mob.

• Cov ntshav plasma muaj kev nyab xeeb dua los hloov dua li cov ntshav tag nrho tshwj xeeb tshaj yog thaum muaj kev pheej hmoo ntawm kev tsis sib haum xeeb.

• Tag nrho cov ntshav yog xim liab, kua nplaum thaum lub plasma yog cov kua ntshiab, cov quav cab xim.