19. The Blood Vessels
Veins
Multiple Choice
Multiple ChoiceA major difference between venules and arterioles is that:
A
The smallest arterioles consist of only one layer (tunic), while the smallest venules have all 3 layers (tunics).
B
Some arterioles make direct contact with capillaries, but no venules do.
C
Arterioles deliver blood to capillaries while venules collect blood from capillaries.
D
Arterioles collect blood from capillaries while venules deliver blood to capillaries.
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