Final answer:
The chemical that attracts neutrophils to an inflamed area is a chemokine, with leukotrienes being particularly effective at attracting neutrophils through chemotaxis.
Step-by-step explanation:
The chemical that attracts neutrophils to an inflamed area is called a chemokine. These are a type of chemotactic cytokine, which are substances that stimulate the movement of cells towards the source of the cytokine signal. Neutrophils, a type of leukocyte, respond to these signals as part of the body's immune response to infection. Leukotrienes are particularly effective in attracting neutrophils to the site of infection through a process known as chemotaxis. This process is crucial for the immune system to rapidly and effectively target pathogens at the site of infection or inflammation.