Which of the Following Represents a Correct Direction of Blood

Question

Which of the following represents a correct direction of blood flow?
A) Capillaries to arterioles to venules
B) Arteries to arterioles to venules to capillaries
C) Capillaries to venules to veins
D) Arteries to veins to venules to capillaries

Accepted Answer

Capillaries are the smallest blood vessels and connect arterioles to venules. Blood flows from the capillaries to the venules, which then drain into the larger veins. Therefore, the correct direction of blood flow is from capillaries to venules to veins. Option A and B are incorrect as they mention blood flow from arterioles to venules, which is not correct. Option D is also incorrect as it mentions blood flow from veins to venules, which is the opposite direction of blood flow.