asma ▁Normal ▁blood ▁pl asma ▁behav es ▁like ▁a ▁Newton ian ▁fluid ▁at ▁phys i ological ▁rates ▁of ▁she ar . ▁Typ ical ▁values ▁for ▁the ▁vis cos ity ▁of ▁normal ▁human ▁pl asma ▁at ▁ 3 7   ° C ▁is ▁ 1 . 4   m N · s / m 2 . ▁The ▁vis cos ity ▁of ▁normal ▁pl asma ▁var ies ▁with ▁temperature ▁in ▁the ▁same ▁way ▁as ▁does ▁that ▁of ▁its ▁sol vent ▁water ; ▁a ▁ 5   ° C ▁increase ▁of ▁temperature ▁in ▁the ▁phys i ological ▁range ▁reduces ▁pl asma ▁vis cos ity ▁by ▁about ▁ 1 0 %. ▁ ▁O sm otic ▁pressure ▁of ▁pl asma ▁The ▁os m otic ▁pressure ▁of ▁solution ▁is ▁determined ▁by ▁the ▁number ▁of ▁particles ▁present ▁and ▁by ▁the ▁temperature . ▁For ▁example , ▁a ▁ 1 ▁mol ar ▁solution ▁of ▁a ▁subst ance ▁contains ▁ ▁mole cules ▁per ▁liter ▁of ▁that ▁subst ance ▁and ▁at ▁ 0   ° C ▁it ▁has ▁an ▁os m otic ▁pressure ▁of ▁. ▁The ▁os m otic ▁pressure ▁of ▁the ▁pl asma ▁affect s ▁the ▁mechan ics ▁of ▁the ▁circul ation ▁in ▁several ▁ways . ▁An ▁alter ation ▁of ▁the ▁os m otic ▁pressure ▁difference ▁across ▁the ▁memb rane ▁of ▁a ▁blood ▁cell ▁causes ▁a ▁shift ▁of ▁water ▁and ▁a ▁change ▁of ▁cell ▁volume . ▁The ▁changes ▁in ▁shape ▁and ▁flex ibility ▁affect ▁the ▁mechanical ▁properties ▁of ▁whole ▁blood . ▁A ▁change ▁in ▁pl asma ▁os m otic ▁pressure ▁al ters ▁the