Question

question 18 (2 points) when dissecting a specimen, barry noticed that the arteries were thicker and more elastic than the veins. why? veins have valves veins return blood to the heart against gravity arteries experience greater pressure arteries contain a greater volume of blood arteries have less smooth muscle than veins

Explanation:

Arteries carry blood away from the heart under high - pressure. To withstand this greater pressure, they are thicker and more elastic. Veins carry blood back to the heart at lower pressure. Valves in veins help with blood return against gravity but don't explain the thickness difference. Arteries don't have a greater volume of blood than veins in the body, and they have more smooth muscle than veins.

Answer:

arteries experience greater pressure