Arteries – play a major role in nourishing organs with blood and nutrients. Arteries are always under high pressure. To accommodate this stress, they have an abundance of elastic tissue and less smooth muscle.
Capillaries – its purpose plays the central role in the circulation, delivering oxygen in the blood to the tissues, and picking up carbon dioxide to be eliminated.
Arteries – play a major role in nourishing organs with blood and nutrients. Arteries are always under high pressure. To accommodate this stress, they have an abundance of elastic tissue and less smooth muscle.
Capillaries – its purpose plays the central role in the circulation, delivering oxygen in the blood to the tissues, and picking up carbon dioxide to be eliminated.
Veins – are used to pump much-needed blood back to the heart.