write the structures nd function of arteries nd veins
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It is returned to the heart in the veins. The capillaries connect the two types of blood vessel and molecules are exchanged between the blood and the cells across their walls.
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Structure and function of blood vessels.
Arteries Veins
Always carry blood away from the heart Always carry blood to the heart
Answered by
1
Answer:
It is returned to the heart in the veins. The capillaries connect the two types of blood vessel and molecules are exchanged between the blood and the cells across their walls.
...
Structure and function of blood vessels
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