transport of gases
02 and co2 transported in blood
systemic arteries, plasma and Hb
oxy-Hb hb with 02 bound to it
deoxy-Hb hb wihout 02 bound to it
o2 at lungs, pulmonary capillaries.
02 at tissue and systemic capillaries
affinity between hb and o2
varies, po2 changes the affinity of the Hb and o2 (strength of attraction)
high affinity Hb binds o2
low affinity hb releases o2
oxyhemoglobin dissociation curve
high saturation = high afinity and low saturation=low affinity
98-99% saturated, high affinity
75% saturated lower affinity
20 ml 02/ 100 ml blood.
very little o2 is dissolved 1-2%
98-99% of 02 is bound to it
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