qe ntshav liab vs Platelets
Ntshav yog cov kua dej sib txuas cov ntaub so ntswg, tsim los ntawm cov kua dej matrix hu ua plasma thiab ntau hom cell thiab lwm yam tsim uas ncig hauv cov kua dej. Nws ntws los ntawm cov hlab ntsha hauv cov tsiaj siab heev. Lub luag haujlwm tseem ceeb ntawm cov ntshav yog kev thauj mus los ntawm cov khoom sib xyaw (xws li cov pa oxygen, carbon dioxide), tshem tawm cov khoom excretory, faib cov tshuaj hormones, tswj cov dej tshuav, lub cev kub thiab lwm yam, coagulation thiab tiv thaiv kab mob. Hauv ib tus neeg laus, cov ntshav tsim 7% mus rau 8% ntawm tag nrho lub cev hnyav thiab muaj nyob ib ncig ntawm 5 litres. Txawm li cas los xij, tag nrho cov ntim no sib txawv nrog tus neeg qhov loj, qhov sib xyaw ntawm lub cev, thiab lub xeev ntawm kev cob qhia. Cov qe ntshav liab, cov qe ntshav dawb, thiab cov platelets sib sau ua ke hu ua cov ntsiab lus tsim. Cov khoom tsim muaj 40% txog 50% ntawm tag nrho cov ntshav ntim. Cov qe ntshav liab tsim muaj ntau dua 99% ntawm cov khoom tsim tawm, thaum tus so (tsawg dua 1% ntawm tag nrho cov khoom tsim ntim) tsim cov qe ntshav dawb thiab platelets. Ob lub qe ntshav liab thiab platelets yog tsim nyob rau hauv cov pob txha liab thiab puas los ntawm phagocytosis.
Cov Ntshav Liab
cov qe ntshav liab, tseem hu ua erythrocytes, yog lub ntsiab tsim ntawm cov ntshav, thiab lawv yog 45% ntawm cov ntshav ntim hauv cov neeg laus. Tsis zoo li lwm cov khoom tsim, cov qe ntshav liab muaj hemoglobin, cov xim uas khi thiab thauj oxygen. Ntawm cov tsiaj, qhov loj tshaj plaws erythrocytes muaj nyob rau hauv ntxhw thiab qhov tsawg tshaj plaws nyob rau hauv musk mos lwj. Cov ntses, amphibians, thiab noog muaj oval, biconvex, thiab nucleated qe ntshav liab thaum, nyob rau hauv cov tsiaj, cov qe ntshav liab yog ncig, biconcave, thiab tsis muaj nuclei. Biconcave cov duab yog qhov tseem ceeb vim nws muab kev yooj yim thiab ua kom yooj yim ntawm cov pa roj.
Platelets
Platelets suav tias yog cov khoom tawg ntawm tes uas tawm ntawm cov hlwb loj dua hu ua megakaryocytes, precursor rau cov qe ntshav dawb pom hauv cov pob txha. Platelets tsis muaj xim thiab muaj granular cytoplasm. Cov tawg no ua lub luag haujlwm tseem ceeb hauv cov ntshav coagulation, uas tiv thaiv kev poob ntshav ntau dhau. Thaum cov hlab ntsha puas lawm, platelets sib sau ua ke ntawm qhov chaw puas thiab tsim ib lub ntsaws los ntawm kev sib txuas rau ib leeg thiab cov ntaub so ntswg. Platelets yog kwv yees li 3µm hauv txoj kab uas hla; ntau me dua li lwm cov khoom tsim xws li cov qe ntshav liab thiab dawb.
Dab tsi yog qhov txawv ntawm Cov Ntshav Liab thiab Platelets?
• cov qe ntshav liab yog cov hlwb ua tiav, qhov platelets suav tias yog cov khoom tawg ntawm tes.
• cov qe ntshav liab tsim muaj ntau dua 99% ntawm tag nrho cov tsim cov ntsiab lus, thaum platelets tsim tsawg dua 1% ntawm nws.
• cov qe ntshav liab muaj hemoglobin, thaum platelets tsis muaj hemoglobin.
• Platelets tsawg dua cov qe ntshav liab.
• cov qe ntshav liab thauj oxygen, thaum cov platelets yuav tsum tau rau cov ntshav coagulation los yog txhaws.
• Mammalian cov ntshav liab yog ncig, biconcave whereas, platelets yog spindle zoo li cov ntsiab.
• Platelets tsis muaj xim, thaum cov qe ntshav liab tshwm daj daj thaum pom ib lub cell.
• Tib neeg cov qe ntshav liab ciaj sia li 120 hnub thaum platelets ciaj sia tau 3 mus rau 7 hnub.
• cov qe ntshav liab raug rhuav tshem hauv cov ntshav lossis hauv tus po thiab daim siab. Hauv qhov sib piv, platelets tsuas yog raug rhuav tshem hauv cov ntshav.
