";s:4:"text";s:2887:"Macrophages surround and kill microorganisms, ingest foreign material, remove dead cells, and boost immune responses. Monocytes exhibit the characteristic properties of phagocytosis—namely, movement, adherence, endocytosis, and microbial activity. Monocytes are capable of directed movement (chemotaxis) in response to substances (chemokines) produced by bacteria or by accessory cells at the site of injury or invasion. monocyte [mon´o-sīt] a mononuclear, phagocytic leukocyte, 13 μm to 25 μm in diameter, having an ovoid or kidney-shaped nucleus and azurophilic cytoplasmic granules. Learn more about the function of basophils and what high and low levels mean in this article. and removes and destroys worn-out red blood cells. There’s some evidence to suggest exercise can help improve monocyte function, especially as you age. Classical monocytes make up around 90 percent of all the monocytes in your body, while intermediate and non-classical make up the other 10 percent.