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.
There are three basic types of blood vessels, including capillaries, arteries and veins.  1 Arteries take oxygen-rich blood away from your heart.  2 Veins take blood back toward your heart.  3 Capillaries are very tiny blood vessels that form a connection between arteries and veins.