take the top of the hanging piece of tie and thread it through the loop created at the back 3 first loop to form the front loop of the bow double up the shorter end placing across the collar and hold in place with your forefinger 6 knot and tighten once through even out the ends and tighten
Cells that engulf and digest bacteria and other foreign substances  as well as debris from dead cells are called macrophage. Macrophage  also stimulate white blood cells to â¦respond to pathogens.
Phagocytosis. White blood cells called phagocytes engulf invaders then destroy them -- a little like eating then digesting the pathogens. This process is called phagocytosis. Macrophages, neutrophils and dendritic cells are the most important phagocytes in your immune system.