Exsanguination incapacitate swine, poultry and domestic sheep, whereas a chemical is used for injured livestock. Continued pumping operation of the heart during exsanguination increases the rate of depletion, and thus hastens death, by raising the fluid pressure of the blood. Because the heart operates like a positive displacement pump, reduction of blood volume will not affect efficiency of cardiac output—deprivation of blood to the heart does gradually result in diminished function, but concurrently with similar death of other parts in the body. Quickly after the animal is incapacitated it is hung upside down by its hind limbs and an extremely sharp
McKenzie method component of the McKenzie method is the corresponding repeated and/or sustained flexion and extension movements as prescribed by the assessment component. ‘‘Everything I know I learnt from my patients. I did not set out to develop a McKenzie method. It evolved spontaneously over time as a result of clinical observation’’ - Doctor Robin McKenzie. The McKenzie method has its roots in a single event in 1956 that led to increased experimentation of certain movement in order to elicit what is now known as the centralisation phenomenon. A patient who was experiencing pain on the right side of his lower back