This document discusses different types of bleeding and first aid procedures. There are three main types of bleeding: arterial, venous, and capillary. Arterial bleeding is the most severe and results in the highest blood volume loss, as the blood spurts from the damaged artery in rhythm with heartbeats. Venous bleeding is also serious due to the high blood volume in veins, though the blood flows out consistently rather than spurting. Capillary bleeding is the least serious. The document provides first aid instructions for each type, including applying direct pressure to arterial and venous wounds and cleaning then bandaging capillary wounds.