MICROANATOMY

Detailed explanation-1: -Blood pressure is highest within the large arteries (such as the aorta) because they are connected directly to the ventricle of the heart.

Detailed explanation-2: -Arteries carry blood away from your heart. Arteries have thick walls so they can handle the high pressure and velocity that expels your blood out of your heart. Veins carry blood back to your heart from the rest of your body.

Detailed explanation-3: -Veins are called capacitance blood vessels because the majority (about 60 percent) of the body’s total volume of blood is contained within veins. Figure 7.4. 3: The two flaps that make up a venous valve can open in just one direction, so blood can flow in only one direction through the vein.