Question

How are the walls of these blood vessels adapted for their function?

Answer 1

Answer:

Arteries have a narrow internal diameter and thick muscular walls. This allows them to carry blood that is at a high pressure. .The vein walls have thinner muscular walls than arteries and have a wider internal diameter. Veins contain valves to prevent the backflow of low-pressure blood

Answer 2

Answer:

The internal diameter of arteries is small, and the muscle walls are thick. This enables them to transport blood at high pressure. Blood is transported from the capillaries to the veins at low pressure before returning to the heart. Veins have thinner muscle walls and a larger internal diameter than arteries.

Explanation:

• Arteries transport oxygen-rich blood away from the heart to all of the body's tissues. They branch out multiple times, getting smaller as they carry blood away from the heart and toward the organs.
• Capillaries - Capillaries are tiny, thin blood vessels that join the arteries and veins. Oxygen, nutrients, carbon dioxide, and other waste items can travel through their thin walls to and from cells.
• Veins - These are blood veins that return blood to the heart; this blood is depleted in oxygen and high in waste items that must be expelled or removed from the body. As you move closer to the heart, the veins become larger.