Which term describes the flow of blood to deliver oxygen and nutrients to tissues?

Which term describes the flow of blood to deliver oxygen and nutrients to tissues?

• A. Perfusion
• B. Oxygenation
• C. Ventilation
• D. Hematopoiesis

Answer: (A)

Perfusion is the flow of blood through the tissue capillaries, delivering oxygen and nutrients to cells and removing waste products. This circulation enables tissues to function properly and respond to metabolic demands. Oxygenation, by contrast, refers to how much oxygen is carried in the blood (the oxygen content after gas exchange in the lungs), not how blood moves to tissues. Ventilation is the movement of air into and out of the lungs, a prerequisite for oxygenation but not the distribution of blood. Hematopoiesis is the production of blood cells in the bone marrow, unrelated to how blood reaches tissues. So the term that best fits “flow of blood to deliver oxygen and nutrients to tissues” is perfusion.

Perfusion is the flow of blood through the tissue capillaries, delivering oxygen and nutrients to cells and removing waste products. This circulation enables tissues to function properly and respond to metabolic demands. Oxygenation, by contrast, refers to how much oxygen is carried in the blood (the oxygen content after gas exchange in the lungs), not how blood moves to tissues. Ventilation is the movement of air into and out of the lungs, a prerequisite for oxygenation but not the distribution of blood. Hematopoiesis is the production of blood cells in the bone marrow, unrelated to how blood reaches tissues. So the term that best fits “flow of blood to deliver oxygen and nutrients to tissues” is perfusion.