What is the basic difference between arteries and veins?

Arteries carry oxygenated blood away from the heart to the rest of the body, while veins carry deoxygenated blood back to the heart. This is the main difference between arteries and veins.

Arteries

- Arteries are blood vessels that carry oxygenated blood away from the heart to the rest of the body.

- Arteries have thick, muscular walls that help to maintain blood pressure.

- Arteries branch into smaller and smaller vessels as they move away from the heart.

Veins

- Veins are blood vessels that carry deoxygenated blood back to the heart.

- Veins have thin, elastic walls that allow them to expand and contract.

- Veins have valves that help to prevent blood from flowing backwards.

Additional differences

- Arteries have a higher pressure than veins.

- Arteries carry oxygen-rich blood, while veins carry oxygen-poor blood.

- Arteries are generally located deeper in the body than veins.

- Arteries are more prone to atherosclerosis, a condition in which plaque builds up on the artery walls and narrows them.