Answer:
The Immune system is a complex network of cells (such as lymphocytes) and organs that work together to defend the body against foreign substances (antigens) such as bacteria, a virus or tumor cell.
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Answer: an inflammation of the air passages to the lungs.
Bronchitis came from the root word bronchi that can be seen in the lungs and a suffix of “tis” attached to it, which means an inflammation.
Therefore, bronchitis is an inflammation of the mucous membrane in the air passages or bronchial tubes of the lungs that usually causes bronchospasm and coughing.
Moreover, prefixes, root words and suffixes are building blocks derived from Latin or Greek to construct medical terms.
