Pathogenesis and Immunology

Question 1

What are the four defense properties of skin?

Answer 1

Dry, Low pH, Lysozymes, Shedding skin

Question 2

List the host barriers

Answer 2

The skin, Mucin, Secretory Immunoglobulin A (IgA)

Question 3

What makes up the second line of defense?

Answer 3

Phagocytes, Inflammatory response, The complement system

Question 4

Describe the process of inflammation

Answer 4

1. Increase blood flow
2. Activates phagocytes
3. Increases capillary permeability
4. Activates clotting to prevent the spread of the pathogen
5. Elevates body temperature
6. Fever

Question 5

What is the significance of cell-minded immunity?

Answer 5

1. Provides immunity against intracellular pathogens
2. Cytotoxic T cells can recognize and kill infected host cells

Question 6

What is the significance of humoral immunity?

Answer 6

1. Provides immunity against extracellular pathogens
2. Results in production of immunoglobulins (antibody)