By SoulSurvivorsGaming, writer at creators.co. DC and Marvel have dominated the comic book industry for decades now, causing millions of people to have a beloved list of their favorite superheroes and characters from those universes. Characters including: Batman, Iron Man, Spider-Man, Superman and even Aqualad.
There are three kinds of blood vessels: arteries, veins, and capillaries. Each of these plays a very specific role in the circulation process. Arteries carry oxygenated blood away from the heart. Theyâre tough on the outside but they contain a smooth interior layer of epithelial cells that allows blood to flow easily.
Blood Vessels. Three types of blood vessels can be differentiated. Arteries carry blood away from the heart, and veins carry blood toward the heart. Capillaries are the smallest links between arteries and veins and are formed by small arteries, called arterioles branching out to become progressively smaller in diameter.rteries carry blood away from the heart, and veins carry blood toward the heart. Capillaries are the smallest links between arteries and veins and are formed by small arteries, called arterioles branching out to become progressively smaller in diameter.