Which is the primary function of arteries?

Which is the primary function of arteries?

• A. To carry blood away from the heart
• B. To carry blood toward the heart
• C. To exchange gases with tissues
• D. To filter blood

Answer: (A)

Arteries move blood away from the heart. They are built with thick, muscular walls to handle the high pressure generated when the heart pumps, allowing them to push blood through the body and regulate flow by constricting or dilating. In the systemic circulation, arteries carry oxygen-rich blood from the heart to tissues, while the pulmonary artery carries blood from the heart to the lungs, still moving it away from the heart. Gas exchange happens mainly in the tiny capillaries, not in arteries, and filtering of blood is done by organs like the kidneys and liver.

Arteries move blood away from the heart. They are built with thick, muscular walls to handle the high pressure generated when the heart pumps, allowing them to push blood through the body and regulate flow by constricting or dilating. In the systemic circulation, arteries carry oxygen-rich blood from the heart to tissues, while the pulmonary artery carries blood from the heart to the lungs, still moving it away from the heart. Gas exchange happens mainly in the tiny capillaries, not in arteries, and filtering of blood is done by organs like the kidneys and liver.