oxyhaemoglobin dissociation curve


ox·y·he·mo·glo·bin dis·so·ci·a·tion curve

(ok'sē-hē'mŏ-glōb'in di-sō'sē-ā'shŭn kŭrv) A graphic illustration of the relationship between oxygen saturation of hemoglobin and the partial pressure of arterial oxygen (PaO2); the position and overall shape of this sigmoidal curve are affected by the hydrogen ion concentration (pH), body temperature, partial pressure of carbon dioxide (PCO2), and organic phosphates.
Synonym(s): oxyhaemoglobin dissociation curve, oxyhaemoglobin dissociation curve.