1. What is a phagocytic cell? Give an example. 2. What are the signs of inflammation?

3. Why does an inflamed area become red?

4. What is meant by the term “autoimmune”?

4. What is a phagocytic cell? Give an example. Phagocytes are cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells. (such as neutrophils, monocytes, macrophages, mast cells, and dendritic cells).

5. What are the signs of inflammation? Redness.

Heat.

Swelling.

Pain.

Loss of function.

6. Why does an inflamed area become red? These include the hormones bradykinin and histamine. They cause the small blood vessels in the tissue to become wider (dilate), allowing more blood to reach the injured tissue. For this reason, inflamed areas turn red and feel hot.

7. What is meant by the term “autoimmune”? An autoimmune disease is an illness that causes the immune system to produce antibodies that attack normal body tissues. Autoimmune is when your body attacks itself. It sees a part of your body or a process as a disease and tries to combat it.



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