Question
State differences between artery, vein and capillary.
Solution
Artery: Arteries are the thick walled blood vessels. They carry blood from the heart to the different organs of body. They have no valve and blood flows with force in them.
Veins: Veins are thin walled blood vessels. They carry blood from different parts of body to heart. They have valves.
Capillaries: Capillaries are thin walled and extremely narrow. Exchange of food materials gases and wastes takes place through capillaries.