Monocytes are large, spherical cells that make up 2 to 8% of circulating WBCs. Monocytes enter peripheral tissues to become tissue macrophages which can engulf large particles and pathogens.
They secrete substances that attract other immune system cells and fibroblasts to the injured area.
However you may mean neutrophils (polymorphonuclear leukocytes) make up 50 to 70 % of all circulating WBCs. Their cytoplasm is packed with pale granules containing lysosomal enzymes
and bacteria-killing compounds (hydrogen peroxide and superoxide anions).
Neutrophils are very active and are generally the first to attack bacteria at the site of an injury. While digesting pathogens, neutrophils release prostaglandins that affect local capillaries, and leukotrienes that attract other phagocytes. The breakdown of used neutrophils in an infected wound forms pus.
A macrophage is the type of white blood cell that surrounds and kills invading cells.
Membrane
This is phenomena known as cellular immunity in which macrophages of body eats the invading cell but before that the foreign cell have to modify by MHC or some other type of molecules in the body so that these macrophagic cell can identify the forieng invading cell. Macrophages cells in different part of body are known by different name such as in nervous system they are known as neuroglial cell, in live known as kuffer cells etc.
the cell membrane and the lysosmes
Fudge
Pathogens
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Normans in the south and vikings in the north
vectors
Who in the name discovered pathogens? i wanna know please....hey that rymhmed (not sure i spelled that right, but close enough!)
dr mayhem
Mercutio.