Assertion: oxyhemoglobin dissociation curve | /r/HasProperty | determined
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text: Specifically, the oxyhemoglobin dissociation curve relates oxygen saturation (S O 2 ) and partial pressure of oxygen in the blood (P O 2 ), and is determined by what is called "hemoglobin affinity for oxygen"; that is, how readily hemoglobin acquires and releases oxygen molecules into the fluid that surrounds it.