Large arteries may be compressed against the underlying bone to stem severe blood loss from a limb. (Top): The point at which the brachial artery passes closest to the skin is halfway between the elbow and shoulder. Clamping the fingers around this point stops the blood supply to a wound on the hand or lower arm. (Bottom): The major pressure point for leg injuries is where the femoral artery crosses the joint between the pelvis and leg. The heel of the hand applied at this point will best reduce blood flow. It should be noted that because these procedures deprive the entire extremity of blood, they should be used only in cases of absolute emergency.
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