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During exercise, where is blood shifted from when going into systemic circulation (where is the blood reservoir)?

A. arteries
B. arterioles
C. venules
D. veins


Sagot :

Final answer:

During exercise, blood is shifted primarily from veins into systemic circulation to meet the body's demands.


Explanation:

In the process of systemic circulation, during exercise, blood is shifted primarily from veins when going into systemic circulation. Veins act as the blood reservoir during times of increased physical activity, enabling more blood to be readily available for the body's needs.


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