The document discusses different types of bleeding from damaged blood vessels. It describes arterial bleeding as bleeding from arteries that carry oxygen-rich blood under high pressure, causing blood to spurt from the wound in time with the heartbeat. Venous bleeding occurs from veins carrying deoxygenated blood at lower pressure, allowing blood to pool in the veins. Capillary bleeding happens with any wound and initially causes brisk bleeding but usually slight blood loss. Bleeding can also be classified as external, occurring on the body surface, or internal, within the body and potentially not immediately noticeable.