Hauv cov txiv neej laus nruab nrab muaj kwv yees li 5 quarts (4.75 liters) ntawm cov ntshav, muaj li ntawm 3 quarts (2.85 liters) ntawm cov ntshav thiab 2 quarts (1.9 litres) ntawm cov hlwb.
Cov qe ntshav raug tshem tawm hauv plasma, uas yog tsim los ntawm cov dej thiab cov khoom siv yaj, suav nrog cov tshuaj hormones, tshuaj tiv thaiv kab mob, thiab cov enzymes uas tau nqa mus rau cov ntaub so ntswg, thiab cov khoom pov tseg ntawm tes uas tau nqa mus rau lub ntsws thiab lub raum.
Cov qe ntshav loj yog cais raws li cov qe ntshav liab (erythrocytes), qe dawb (leukocytes), thiab platelets (thrombocytes).
Cov hlwb liab yog cov mos mos, puag ncig, concave lub cev uas muaj hemoglobin, cov tshuaj complex uas thauj oxygen thiab carbon dioxide.
Hemolysis tshwm sim thaum daim nyias nyias tiv thaiv daim nyias nyias uas encases cov pob liab liab tawg tawg, cia hemoglobin khiav mus rau hauv cov ntshav.Hemolysis tuaj yeem tshwm sim los ntawm kev tuav ntawm cov ntshav kuaj, tawm hauv lub cev ntev ntev (ua rau cov ntshav stasis) los yog tuav cov ntiv tes nyuaj heev thaum lub sij hawm sau capillary, dilution, raug cov kab mob, qhov kub thiab txias, lossis cov kab mob pathologic.
