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The Immune System
1. Identify and describe three external defenses of the human body.
2. How do the words innate and acquired relate to when these types of immunity develop in a human body?
3. Describe the function of the following cells and chemicals of the innate immune system:
macrophages, natural killer (NK) cells, mast cells, histamine, interferons, complement system, and
4. Differentiate between an antigen and an antibody. What do these terms mean if a person is said to have
blood type “B”?
5. Differentiate between a B cell and a T cell.
6. Imagine that your cousin gives birth to a child without a thymus. Discuss what defect might mean to the
health of the baby.
7. Describe the differences between the antigens that B cell receptors and antibodies recognize, and the antigens
that T cell receptors on cytotoxic T cells and helper T cells recognize.
8. Describe the differences between the humoral immune response and the cell-mediate immune response.
9. Describe the difference between active immunity and passive immunity.
10. Discuss what allergies are and describe how the body responds in an allergy reaction.
11. Explain why Academites inflected with herpes simplex I tend to get cold sores around final exam time.
12. Dr. Smith’s son inherited a genetic condition called Hypogammaglobulinemia where his ability to make all
five the antibody classes is greatly affected (he only made two of the five). Explain why this condition was not
detected until the son stopped nursing.
13. What is an autoimmune disease? Give TWO examples and briefly describe the symptoms of each
14. Discuss why HIV is deadly, difficult to control, and describe what measures can be taken to help slow the
spread of this disease world-wide.