Macrophages play a central role in the immune response, since they are important for both innate and adaptive systems. ... Macrophages migrate into the inflamed site without a stimulus, they phagocytosis pathogens and release cytokines and chemokine's to attract other leukocytes to the site i.e. neutrophils and monocytes. ... Furthermore, macrophages secrete IL-1 and tumor necrosis factor alpha that function in initiating the inflammatory response by attracting other leukocytes to the site and assist in activating the T lymphocytes. ... This is the antigen presentation (AP) function of ma...

• Word Count: 1388
• Approx Pages: 6
• Grade Level: Undergraduate

Frequently, we encounter the remainders of construction sites such as: panels, blocks, bricks covered with ashes, and slag. ... They can affect the central nervous system, and other body systems, as well. ...

• Word Count: 2478
• Approx Pages: 10
• Grade Level: High School

After the Post-Arab Spring, fundamental changes came to the entire Middle Eastern region. The fall of Saddam Hussein laid a foundation for democracy to be started but also set the groundwork for the rise of ISIS within the nation of Iraq. The Islamic State of Iraq and al-Sham, also known as ISIS, is...

• Word Count: 2469
• Approx Pages: 10
• Has Bibliography