Host defenses

Question 1

Lactoferrin

Answer 1

Binds iron, deprives pathogens from Fe

Question 2

Lactoperoxidase

Answer 2

prod superoxide radicals, reactive O2 species

Question 3

Transferrin

Answer 3

prod in liver, carries iron thru blood

Question 4

Neutrophil

Answer 4

First responder to infection, phagocytosis

Question 5

Eosinophil

Answer 5

Allergic reactions. Kills parasite, neutrolizes basophil & mast cell prod

Question 6

Basophil

Answer 6

Induce & maintain allergic reactions. Stim prod of IgE

Question 7

Monocytes

Answer 7

prof phagocyte

Question 8

Lymphocytes

Answer 8

Mediators of adaptive immunity (T cells, B cells, NK cells)

Question 9

B cells

Answer 9

Matures in bone marrow. Prod antibodies, mediates humoral immunity

Question 10

T cells

Answer 10

Thymocytes (matures in thymus). CMI.

Question 11

T helper cells

Answer 11

Activate macrophages, inflammation. Activates B cells and T cells

Question 12

Cytotoxic T cells

Answer 12

Kills infected cells

Question 13

Regulatory T cells

Answer 13

Suppresses the immune response

Question 14

NK cells

Answer 14

Matures in bone marrow. Kills target cells. First line of defense against virally infected and tumor cells

Question 15

Leukopenia

Answer 15

Decrease in circulation of WBC