Final answer:
Neutrophils are phagocytic and produce cytokines to promote inflammation during chronic inflammation.
Step-by-step explanation:
Neutrophils are phagocytic leukocytes that engulf and digest pathogens. They produce cytokines that promote inflammation, which includes localized redness, swelling, heat, and pain at the site of infection. The increase in neutrophils in the blood is seen during chronic inflammation as a response to the presence of pathogens.