1. Arteries have thick walls.   True   False   2. Which blood vessel carries blood from the heart to all parts of the body?   aorta   anterior cardiac vein   vena cava   right coronary artery   Hint Half-n-half Clue   3. The walls of capillaries comprise a single layer of squamous epithelium.   True   False   4. Veins have non-elastic walls.   True   False   5. If an artery is empty, it collapses.   True   False   6. Which blood vessel carries blood from all parts of the body to the heart?   aorta   vena cava   anterior cardiac vein   right coronary artery   Half-n-half Clue   7. Veins are normally located just below the skin.   True   False