| (Q.63) What are the differences between arteries and veins? | | |
(Ans) Arteries have thick and elastic walls; they carry blood away from the heart.
Veins do not have thick walls but have valves to ensure that blood flows in one direction. Veins carry blood towards heart.
Veins do not have thick walls but have valves to ensure that blood flows in one direction. Veins carry blood towards heart.
No comments:
Post a Comment