Answer :
Answer:
The vein
Explanation:
Veins have much thinner walls than do arteries, largely because the pressure in veins is so much lower.Veins can widen (dilate) as the amount of fluid in them increases.
Answer:
The vein
Explanation:
Veins have much thinner walls than do arteries, largely because the pressure in veins is so much lower.Veins can widen (dilate) as the amount of fluid in them increases.