Question

if the capillaries are blocked by sickle cell anemia cells, what will happen to the blood flow to the tissues? it will increase blood flow. it will decrease the blood flow. it will stay the same.

Explanation:

Capillaries are small blood vessels that supply blood to tissues. If they are blocked by sickle - shaped cells (as in sickle cell anemia), the passage for blood to flow through to the tissues is restricted. A blockage in the blood vessels that carry blood to tissues will impede the normal flow of blood, so the blood flow to the tissues will decrease. The option "It will increase blood flow" is incorrect because a blockage would not allow more blood to flow. The option "It will stay the same" is also incorrect as the blockage disrupts the normal blood flow.

Answer:

B. It will decrease the blood flow.