Which blood vessels have thick, elastic walls?
Capillaries
Arteries
Valves
Veins
Arteries have thick, elastic walls.
Question 21 Choose the correct statement that describes arteries. (a) They have thick elastic walls, blood flows under high pressure; collect blood from different organs and bring it back to the heart. (b) They have thin walls with valves inside, blood flows under low pressure and carries blood away from the heart to various organs of the body. (c) They have thick elastic walls, blood flows under low pressure; carry blood from the heart to various organs of the body. (d) They have thick elastic walls without valves inside, blood flows under high pressure and carries blood away from the heart to different parts of the body.