When blood passes through systemic capillaries, the oxygen saturation of hemoglobin changes
A) from about 98% to about 75% saturated.
B) from about 40% to about 80% saturated.
C) from about 70% saturated to about 99% saturated.
D) from about 99% saturated to about 25% saturated.

Question

Quizplus · Accepted Answer

In systemic capillaries, oxygen is delivered to tissues, reducing hemoglobin saturation from about 98% in arterial blood to about 75% in venous blood.

When Blood Passes Through Systemic Capillaries, the Oxygen Saturation of Hemoglobin