Ace the Oncology Nursing Game: 2025 Chemo-Bio Certification Practice Test Adventure!

Question: 1 / 400

Which cells secrete chemicals that enhance inflammation and kill foreign invaders?

Macrophages

B cells

Natural killer cells

Natural killer cells play a critical role in the innate immune system, particularly in the response to viral infections and tumor cells. Their primary function is to recognize and destroy abnormal cells, such as those infected with viruses or transformed by cancer. In addition to direct cell killing, natural killer cells also secrete various cytokines and chemokines that enhance the inflammatory response. These secreted substances promote the recruitment and activation of other immune cells to the site of infection or tumor growth, contributing to a more robust immune response.

Understanding the function of natural killer cells helps clarify their role in both innate immunity and inflammation. This includes the release of pro-inflammatory cytokines that activate other immune cells, such as macrophages and T cells, which are crucial for a coordinated immune response against pathogens and tumor cells.

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T cells

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