2. Harvest hind limbs from one mouse. Remove skin and as much muscle and
connective tissue as possible. Cut the limb above the hip and below the ankle
joint (including some of the foot); it is important to maintain the bone ends to
ensure sterility of the bone marrow. After severing theh limb, carefully break
apart the knee joint and strip remaining connective tissure from both ends of
femur and tibia if ends remain intact.