The arteries' walls.
Because arteries are narrower, thus increasing the pressure in the arteries. So you need thicker walls to contain the blood under pressure.
They do not seem more rigid, they are more rigid! They both have cell walls. Many eubacteria, the bacteria you are most familiar with, have cell walls of peptidoglycan. Plants have cell walls made of interlocking cellulose.
Arteries have thicker wall because the pressure in the arteries is much higher.
Is the abnormal softening of the walls of an artery or arteries
Have thinner walls.
The arterial walls are thicker because they need to withstand the pressure coming from the heart.
yes, they do
Because the the outer walls of the bigger arteries are thicker. the thinner the wall the more transparent it is. Because the the outer walls of the bigger arteries are thicker. the thinner the wall the more transparent it is.
The elastic walls helps regulate blood pressure.
No, Plants and bacteria have rigid cell walls. we humans have a membrane
The arteries carry oxygenated blood from the heart to the body. The walls of arteries are muscular allowing the arteries to constrict or dilate. The more constricted the arteries are, the higher the blood pressure.