What does an oxygen dissociation curve show? Draw and compare the oxyg

Question

What does an oxygen dissociation curve show? Draw and compare the oxygen dissociation curves of haemoglobin and myogobin.

24 Jan 2022

Answer :

Word Count : 445

The oxygen dissociation curve of adult haemoglobin is a sigmoid curve. The three main points to indicate on the curve are: • Arterial point: pO2 100 mmHg with SaO2 = 97.5% • Mixed venous: pO2 40 mmHg with SaO2 = 75% • P50: pO2 26.6 mmHg with SaO2 = 50%

Image ignouassignments-ignouacademy-com--p-curve-34382

Image ignouassignments-ignouacademy-com--p-draw-82671

Four other simple points to remember to allow rapid and reasonably accurate drawing of the ODC in a viva are:

pO2 0 mmHg, SO2 0% - the origin

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